The 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies
Identifieur interne : 000889 ( Main/Corpus ); précédent : 000888; suivant : 000890The 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies
Auteurs : Roberto De Propris ; Warrick J. Couch ; Matthew Colless ; Gavin B. Dalton ; Chris Collins ; Carlton M. Baugh ; Joss Bland-Hawthorn ; Terry Bridges ; Russell Cannon ; Shaun Cole ; Nicholas Cross ; Kathryn Deeley ; Simon P. Driver ; George Efstathiou ; Richard S. Ellis ; Carlos S. Frenk ; Karl Glazebrook ; Carole Jackson ; Ofer Lahav ; Ian Lewis ; Stuart Lumsden ; Steve Maddox ; Darren Madgwick ; Stephen Moody ; Peder Norberg ; John A. Peacock ; Will Percival ; Bruce A. Peterson ; Will Sutherland ; Keith TaylorSource :
- Monthly Notices of the Royal Astronomical Society [ 0035-8711 ] ; 2002-01-01.
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Abstract
We have carried out a study of known clusters within the 2dF Galaxy Redshift Survey (2dFGRS) observed areas and have identified 431 Abell, 173APM and 343 EDCC clusters. Precise redshifts, velocity dispersions and new centroids have been measured for the majority of these objects, and this information is used to study the completeness of these catalogues, the level of contamination from foreground and background structures along the cluster's line of sight, the space density of the clusters as a function of redshift, and their velocity dispersion distributions. We find that the Abell and EDCC catalogues are contaminated at the level of about 10 per cent, whereas the APM catalogue suffers only 5 per cent contamination. If we use the original catalogue centroids, the level of contamination rises to approximately 15 per cent for the Abell and EDCC catalogues, showing that the presence of foreground and background groups may alter the richness of clusters in these catalogues. There is a deficiency of clusters at that may correspond to a large underdensity in the Southern hemisphere. From the cumulative distribution of velocity dispersions for these clusters, we derive a space density of clusters of This result is used to constrain models for structure formation; our data favour low-density cosmologies, subject to the usual assumptions concerning the shape and normalization of the power spectrum.
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DOI: 10.1046/j.1365-8711.2002.04958.x
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Peterson</name><affiliation><mods:affiliation>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</mods:affiliation></affiliation></author><author><name sortKey="Sutherland, Will" sort="Sutherland, Will" uniqKey="Sutherland W" first="Will" last="Sutherland">Will Sutherland</name><affiliation><mods:affiliation>Department of Physics, Keble Road, Oxford OX1 3RH</mods:affiliation></affiliation></author><author><name sortKey="Taylor, Keith" sort="Taylor, Keith" uniqKey="Taylor K" first="Keith" last="Taylor">Keith Taylor</name><affiliation><mods:affiliation>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778</idno><date when="2002" year="2002">2002</date><idno type="doi">10.1046/j.1365-8711.2002.04958.x</idno><idno type="url">https://api.istex.fr/document/CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778/fulltext/pdf</idno><idno type="wicri:Area/Main/Corpus">000889</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">The 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies</title><author><name sortKey="De Propris, Roberto" sort="De Propris, Roberto" uniqKey="De Propris R" first="Roberto" last="De Propris">Roberto De Propris</name><affiliation><mods:affiliation>Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia</mods:affiliation></affiliation><affiliation><mods:affiliation>E-mail: propris@bat.phys.unsw.edu.au</mods:affiliation></affiliation></author><author><name sortKey="Couch, Warrick J" sort="Couch, Warrick J" uniqKey="Couch W" first="Warrick J." last="Couch">Warrick J. Couch</name><affiliation><mods:affiliation>Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia</mods:affiliation></affiliation></author><author><name sortKey="Colless, Matthew" sort="Colless, Matthew" uniqKey="Colless M" first="Matthew" last="Colless">Matthew Colless</name><affiliation><mods:affiliation>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</mods:affiliation></affiliation></author><author><name sortKey="Dalton, Gavin B" sort="Dalton, Gavin B" uniqKey="Dalton G" first="Gavin B." last="Dalton">Gavin B. Dalton</name><affiliation><mods:affiliation>Department of Physics, Keble Road, Oxford OX1 3RH</mods:affiliation></affiliation></author><author><name sortKey="Collins, Chris" sort="Collins, Chris" uniqKey="Collins C" first="Chris" last="Collins">Chris Collins</name><affiliation><mods:affiliation>Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Birkenhead L14 1LD</mods:affiliation></affiliation></author><author><name sortKey="Baugh, Carlton M" sort="Baugh, Carlton M" uniqKey="Baugh C" first="Carlton M." last="Baugh">Carlton M. Baugh</name><affiliation><mods:affiliation>Department of Physics, South Road, Durham DH1 3LE</mods:affiliation></affiliation></author><author><name sortKey="Bland Hawthorn, Joss" sort="Bland Hawthorn, Joss" uniqKey="Bland Hawthorn J" first="Joss" last="Bland-Hawthorn">Joss Bland-Hawthorn</name><affiliation><mods:affiliation>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</mods:affiliation></affiliation></author><author><name sortKey="Bridges, Terry" sort="Bridges, Terry" uniqKey="Bridges T" first="Terry" last="Bridges">Terry Bridges</name><affiliation><mods:affiliation>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</mods:affiliation></affiliation></author><author><name sortKey="Cannon, Russell" sort="Cannon, Russell" uniqKey="Cannon R" first="Russell" last="Cannon">Russell Cannon</name><affiliation><mods:affiliation>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</mods:affiliation></affiliation></author><author><name sortKey="Cole, Shaun" sort="Cole, Shaun" uniqKey="Cole S" first="Shaun" last="Cole">Shaun Cole</name><affiliation><mods:affiliation>Department of Physics, South Road, Durham DH1 3LE</mods:affiliation></affiliation></author><author><name sortKey="Cross, Nicholas" sort="Cross, Nicholas" uniqKey="Cross N" first="Nicholas" last="Cross">Nicholas Cross</name><affiliation><mods:affiliation>School of Physics and Astronomy, North Haugh, St Andrews, Fife KY6 9SS</mods:affiliation></affiliation></author><author><name sortKey="Deeley, Kathryn" sort="Deeley, Kathryn" uniqKey="Deeley K" first="Kathryn" last="Deeley">Kathryn Deeley</name><affiliation><mods:affiliation>Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia</mods:affiliation></affiliation></author><author><name sortKey="Driver, Simon P" sort="Driver, Simon P" uniqKey="Driver S" first="Simon P." last="Driver">Simon P. Driver</name><affiliation><mods:affiliation>School of Physics and Astronomy, North Haugh, St Andrews, Fife KY6 9SS</mods:affiliation></affiliation></author><author><name sortKey="Efstathiou, George" sort="Efstathiou, George" uniqKey="Efstathiou G" first="George" last="Efstathiou">George Efstathiou</name><affiliation><mods:affiliation>Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA</mods:affiliation></affiliation></author><author><name sortKey="Ellis, Richard S" sort="Ellis, Richard S" uniqKey="Ellis R" first="Richard S." last="Ellis">Richard S. Ellis</name><affiliation><mods:affiliation>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</mods:affiliation></affiliation></author><author><name sortKey="Frenk, Carlos S" sort="Frenk, Carlos S" uniqKey="Frenk C" first="Carlos S." last="Frenk">Carlos S. Frenk</name><affiliation><mods:affiliation>Department of Physics, South Road, Durham DH1 3LE</mods:affiliation></affiliation></author><author><name sortKey="Glazebrook, Karl" sort="Glazebrook, Karl" uniqKey="Glazebrook K" first="Karl" last="Glazebrook">Karl Glazebrook</name><affiliation><mods:affiliation>Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218-2686, USA</mods:affiliation></affiliation></author><author><name sortKey="Jackson, Carole" sort="Jackson, Carole" uniqKey="Jackson C" first="Carole" last="Jackson">Carole Jackson</name><affiliation><mods:affiliation>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</mods:affiliation></affiliation></author><author><name sortKey="Lahav, Ofer" sort="Lahav, Ofer" uniqKey="Lahav O" first="Ofer" last="Lahav">Ofer Lahav</name><affiliation><mods:affiliation>Racah Institute of Physics, The Hebrew University, Jerusalem, 91904, Israel</mods:affiliation></affiliation></author><author><name sortKey="Lewis, Ian" sort="Lewis, Ian" uniqKey="Lewis I" first="Ian" last="Lewis">Ian Lewis</name><affiliation><mods:affiliation>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</mods:affiliation></affiliation></author><author><name sortKey="Lumsden, Stuart" sort="Lumsden, Stuart" uniqKey="Lumsden S" first="Stuart" last="Lumsden">Stuart Lumsden</name><affiliation><mods:affiliation>Department of Physics, University of Leeds, Woodhouse Lane, Leeds LS2 9JT</mods:affiliation></affiliation></author><author><name sortKey="Maddox, Steve" sort="Maddox, Steve" uniqKey="Maddox S" first="Steve" last="Maddox">Steve Maddox</name><affiliation><mods:affiliation>School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD</mods:affiliation></affiliation></author><author><name sortKey="Madgwick, Darren" sort="Madgwick, Darren" uniqKey="Madgwick D" first="Darren" last="Madgwick">Darren Madgwick</name><affiliation><mods:affiliation>Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA</mods:affiliation></affiliation></author><author><name sortKey="Moody, Stephen" sort="Moody, Stephen" uniqKey="Moody S" first="Stephen" last="Moody">Stephen Moody</name><affiliation><mods:affiliation>Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA</mods:affiliation></affiliation><affiliation><mods:affiliation>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</mods:affiliation></affiliation></author><author><name sortKey="Norberg, Peder" sort="Norberg, Peder" uniqKey="Norberg P" first="Peder" last="Norberg">Peder Norberg</name><affiliation><mods:affiliation>Department of Physics, South Road, Durham DH1 3LE</mods:affiliation></affiliation></author><author><name sortKey="Peacock, John A" sort="Peacock, John A" uniqKey="Peacock J" first="John A." last="Peacock">John A. Peacock</name><affiliation><mods:affiliation>Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</mods:affiliation></affiliation></author><author><name sortKey="Percival, Will" sort="Percival, Will" uniqKey="Percival W" first="Will" last="Percival">Will Percival</name><affiliation><mods:affiliation>Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</mods:affiliation></affiliation></author><author><name sortKey="Peterson, Bruce A" sort="Peterson, Bruce A" uniqKey="Peterson B" first="Bruce A." last="Peterson">Bruce A. Peterson</name><affiliation><mods:affiliation>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</mods:affiliation></affiliation></author><author><name sortKey="Sutherland, Will" sort="Sutherland, Will" uniqKey="Sutherland W" first="Will" last="Sutherland">Will Sutherland</name><affiliation><mods:affiliation>Department of Physics, Keble Road, Oxford OX1 3RH</mods:affiliation></affiliation></author><author><name sortKey="Taylor, Keith" sort="Taylor, Keith" uniqKey="Taylor K" first="Keith" last="Taylor">Keith Taylor</name><affiliation><mods:affiliation>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Monthly Notices of the Royal Astronomical Society</title><title level="j" type="abbrev">Mon. Not. R. Astron. Soc.</title><idno type="ISSN">0035-8711</idno><idno type="eISSN">1365-2966</idno><imprint><publisher>Blackwell Science Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2002-01-01">2002-01-01</date><biblScope unit="volume">329</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="87">87</biblScope><biblScope unit="page" to="101">101</biblScope></imprint><idno type="ISSN">0035-8711</idno></series><idno type="istex">CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778</idno><idno type="DOI">10.1046/j.1365-8711.2002.04958.x</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0035-8711</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>astronomical data bases: miscellaneous</term><term>cosmology: observations</term><term>galaxies: clusters: general</term><term>galaxies: distances and redshifts</term><term>surveys</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">We have carried out a study of known clusters within the 2dF Galaxy Redshift Survey (2dFGRS) observed areas and have identified 431 Abell, 173APM and 343 EDCC clusters. Precise redshifts, velocity dispersions and new centroids have been measured for the majority of these objects, and this information is used to study the completeness of these catalogues, the level of contamination from foreground and background structures along the cluster's line of sight, the space density of the clusters as a function of redshift, and their velocity dispersion distributions. We find that the Abell and EDCC catalogues are contaminated at the level of about 10 per cent, whereas the APM catalogue suffers only 5 per cent contamination. If we use the original catalogue centroids, the level of contamination rises to approximately 15 per cent for the Abell and EDCC catalogues, showing that the presence of foreground and background groups may alter the richness of clusters in these catalogues. There is a deficiency of clusters at that may correspond to a large underdensity in the Southern hemisphere. From the cumulative distribution of velocity dispersions for these clusters, we derive a space density of clusters of This result is used to constrain models for structure formation; our data favour low-density cosmologies, subject to the usual assumptions concerning the shape and normalization of the power spectrum.</div></front></TEI><istex><corpusName>oup</corpusName><author><json:item><name>Roberto de Propris</name><affiliations><json:string>Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia</json:string><json:string>E-mail: propris@bat.phys.unsw.edu.au</json:string></affiliations></json:item><json:item><name>Warrick J. Couch</name><affiliations><json:string>Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia</json:string></affiliations></json:item><json:item><name>Matthew Colless</name><affiliations><json:string>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</json:string></affiliations></json:item><json:item><name>Gavin B. Dalton</name><affiliations><json:string>Department of Physics, Keble Road, Oxford OX1 3RH</json:string></affiliations></json:item><json:item><name>Chris Collins</name><affiliations><json:string>Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Birkenhead L14 1LD</json:string></affiliations></json:item><json:item><name>Carlton M. Baugh</name><affiliations><json:string>Department of Physics, South Road, Durham DH1 3LE</json:string></affiliations></json:item><json:item><name>Joss Bland-Hawthorn</name><affiliations><json:string>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</json:string></affiliations></json:item><json:item><name>Terry Bridges</name><affiliations><json:string>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</json:string></affiliations></json:item><json:item><name>Russell Cannon</name><affiliations><json:string>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</json:string></affiliations></json:item><json:item><name>Shaun Cole</name><affiliations><json:string>Department of Physics, South Road, Durham DH1 3LE</json:string></affiliations></json:item><json:item><name>Nicholas Cross</name><affiliations><json:string>School of Physics and Astronomy, North Haugh, St Andrews, Fife KY6 9SS</json:string></affiliations></json:item><json:item><name>Kathryn Deeley</name><affiliations><json:string>Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia</json:string></affiliations></json:item><json:item><name>Simon P. Driver</name><affiliations><json:string>School of Physics and Astronomy, North Haugh, St Andrews, Fife KY6 9SS</json:string></affiliations></json:item><json:item><name>George Efstathiou</name><affiliations><json:string>Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA</json:string></affiliations></json:item><json:item><name>Richard S. Ellis</name><affiliations><json:string>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</json:string></affiliations></json:item><json:item><name>Carlos S. Frenk</name><affiliations><json:string>Department of Physics, South Road, Durham DH1 3LE</json:string></affiliations></json:item><json:item><name>Karl Glazebrook</name><affiliations><json:string>Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218-2686, USA</json:string></affiliations></json:item><json:item><name>Carole Jackson</name><affiliations><json:string>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</json:string></affiliations></json:item><json:item><name>Ofer Lahav</name><affiliations><json:string>Racah Institute of Physics, The Hebrew University, Jerusalem, 91904, Israel</json:string></affiliations></json:item><json:item><name>Ian Lewis</name><affiliations><json:string>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</json:string></affiliations></json:item><json:item><name>Stuart Lumsden</name><affiliations><json:string>Department of Physics, University of Leeds, Woodhouse Lane, Leeds LS2 9JT</json:string></affiliations></json:item><json:item><name>Steve Maddox</name><affiliations><json:string>School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD</json:string></affiliations></json:item><json:item><name>Darren Madgwick</name><affiliations><json:string>Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA</json:string></affiliations></json:item><json:item><name>Stephen Moody</name><affiliations><json:string>Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA</json:string><json:string>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</json:string></affiliations></json:item><json:item><name>Peder Norberg</name><affiliations><json:string>Department of Physics, South Road, Durham DH1 3LE</json:string></affiliations></json:item><json:item><name>John A. Peacock</name><affiliations><json:string>Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</json:string></affiliations></json:item><json:item><name>Will Percival</name><affiliations><json:string>Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</json:string></affiliations></json:item><json:item><name>Bruce A. Peterson</name><affiliations><json:string>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</json:string></affiliations></json:item><json:item><name>Will Sutherland</name><affiliations><json:string>Department of Physics, Keble Road, Oxford OX1 3RH</json:string></affiliations></json:item><json:item><name>Keith Taylor</name><affiliations><json:string>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>astronomical data bases: miscellaneous</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>surveys</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>galaxies: clusters: general</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>galaxies: distances and redshifts</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>cosmology: observations</value></json:item></subject><language><json:string>eng</json:string></language><originalGenre><json:string>research-article</json:string></originalGenre><abstract>We have carried out a study of known clusters within the 2dF Galaxy Redshift Survey (2dFGRS) observed areas and have identified 431 Abell, 173APM and 343 EDCC clusters. Precise redshifts, velocity dispersions and new centroids have been measured for the majority of these objects, and this information is used to study the completeness of these catalogues, the level of contamination from foreground and background structures along the cluster's line of sight, the space density of the clusters as a function of redshift, and their velocity dispersion distributions. We find that the Abell and EDCC catalogues are contaminated at the level of about 10 per cent, whereas the APM catalogue suffers only 5 per cent contamination. If we use the original catalogue centroids, the level of contamination rises to approximately 15 per cent for the Abell and EDCC catalogues, showing that the presence of foreground and background groups may alter the richness of clusters in these catalogues. There is a deficiency of clusters at that may correspond to a large underdensity in the Southern hemisphere. From the cumulative distribution of velocity dispersions for these clusters, we derive a space density of clusters of This result is used to constrain models for structure formation; our data favour low-density cosmologies, subject to the usual assumptions concerning the shape and normalization of the power spectrum.</abstract><qualityIndicators><score>8.152</score><pdfVersion>1.4</pdfVersion><pdfPageSize>594 x 781 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>5</keywordCount><abstractCharCount>1413</abstractCharCount><pdfWordCount>8245</pdfWordCount><pdfCharCount>49077</pdfCharCount><pdfPageCount>15</pdfPageCount><abstractWordCount>221</abstractWordCount></qualityIndicators><title>The 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies</title><genre><json:string>research-article</json:string></genre><host><volume>329</volume><publisherId><json:string>mnras</json:string></publisherId><pages><last>101</last><first>87</first></pages><issn><json:string>0035-8711</json:string></issn><issue>1</issue><genre><json:string>journal</json:string></genre><language><json:string>unknown</json:string></language><eissn><json:string>1365-2966</json:string></eissn><title>Monthly Notices of the Royal Astronomical Society</title></host><categories><wos><json:string>ASTRONOMY & ASTROPHYSICS</json:string></wos></categories><publicationDate>2002</publicationDate><copyrightDate>2002</copyrightDate><doi><json:string>10.1046/j.1365-8711.2002.04958.x</json:string></doi><id>CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778</id><score>0.8158901</score><fulltext><json:item><original>true</original><mimetype>application/pdf</mimetype><extension>pdf</extension><uri>https://api.istex.fr/document/CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778/fulltext/pdf</uri></json:item><json:item><original>false</original><mimetype>application/zip</mimetype><extension>zip</extension><uri>https://api.istex.fr/document/CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a">The 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>Blackwell Science Ltd</publisher><pubPlace>Oxford, UK</pubPlace><availability><p>© 2002 RAS</p></availability><date>2002</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a">The 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies</title><author xml:id="author-1" corresp="yes"><persName><forename type="first">Roberto</forename><surname>de Propris</surname></persName><email>propris@bat.phys.unsw.edu.au</email><affiliation>Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia</affiliation></author><author xml:id="author-2"><persName><forename type="first">Warrick J.</forename><surname>Couch</surname></persName><affiliation>Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia</affiliation></author><author xml:id="author-3"><persName><forename type="first">Matthew</forename><surname>Colless</surname></persName><affiliation>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</affiliation></author><author xml:id="author-4"><persName><forename type="first">Gavin B.</forename><surname>Dalton</surname></persName><affiliation>Department of Physics, Keble Road, Oxford OX1 3RH</affiliation></author><author xml:id="author-5"><persName><forename type="first">Chris</forename><surname>Collins</surname></persName><affiliation>Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Birkenhead L14 1LD</affiliation></author><author xml:id="author-6"><persName><forename type="first">Carlton M.</forename><surname>Baugh</surname></persName><affiliation>Department of Physics, South Road, Durham DH1 3LE</affiliation></author><author xml:id="author-7"><persName><forename type="first">Joss</forename><surname>Bland-Hawthorn</surname></persName><affiliation>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</affiliation></author><author xml:id="author-8"><persName><forename type="first">Terry</forename><surname>Bridges</surname></persName><affiliation>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</affiliation></author><author xml:id="author-9"><persName><forename type="first">Russell</forename><surname>Cannon</surname></persName><affiliation>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</affiliation></author><author xml:id="author-10"><persName><forename type="first">Shaun</forename><surname>Cole</surname></persName><affiliation>Department of Physics, South Road, Durham DH1 3LE</affiliation></author><author xml:id="author-11"><persName><forename type="first">Nicholas</forename><surname>Cross</surname></persName><affiliation>School of Physics and Astronomy, North Haugh, St Andrews, Fife KY6 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S.</forename><surname>Frenk</surname></persName><affiliation>Department of Physics, South Road, Durham DH1 3LE</affiliation></author><author xml:id="author-17"><persName><forename type="first">Karl</forename><surname>Glazebrook</surname></persName><affiliation>Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218-2686, USA</affiliation></author><author xml:id="author-18"><persName><forename type="first">Carole</forename><surname>Jackson</surname></persName><affiliation>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</affiliation></author><author xml:id="author-19"><persName><forename type="first">Ofer</forename><surname>Lahav</surname></persName><affiliation>Racah Institute of Physics, The Hebrew University, Jerusalem, 91904, Israel</affiliation></author><author xml:id="author-20"><persName><forename type="first">Ian</forename><surname>Lewis</surname></persName><affiliation>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</affiliation></author><author xml:id="author-21"><persName><forename type="first">Stuart</forename><surname>Lumsden</surname></persName><affiliation>Department of Physics, University of Leeds, Woodhouse Lane, Leeds LS2 9JT</affiliation></author><author xml:id="author-22"><persName><forename type="first">Steve</forename><surname>Maddox</surname></persName><affiliation>School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD</affiliation></author><author xml:id="author-23"><persName><forename type="first">Darren</forename><surname>Madgwick</surname></persName><affiliation>Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA</affiliation></author><author xml:id="author-24"><persName><forename type="first">Stephen</forename><surname>Moody</surname></persName><affiliation>Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA</affiliation><affiliation>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</affiliation></author><author xml:id="author-25"><persName><forename type="first">Peder</forename><surname>Norberg</surname></persName><affiliation>Department of Physics, South Road, Durham DH1 3LE</affiliation></author><author xml:id="author-26"><persName><forename type="first">John A.</forename><surname>Peacock</surname></persName><affiliation>Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</affiliation></author><author xml:id="author-27"><persName><forename type="first">Will</forename><surname>Percival</surname></persName><affiliation>Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</affiliation></author><author xml:id="author-28"><persName><forename type="first">Bruce A.</forename><surname>Peterson</surname></persName><affiliation>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</affiliation></author><author xml:id="author-29"><persName><forename type="first">Will</forename><surname>Sutherland</surname></persName><affiliation>Department of Physics, Keble Road, Oxford OX1 3RH</affiliation></author><author xml:id="author-30"><persName><forename type="first">Keith</forename><surname>Taylor</surname></persName><affiliation>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</affiliation></author></analytic><monogr><title level="j">Monthly Notices of the Royal Astronomical Society</title><title level="j" type="abbrev">Mon. Not. R. Astron. Soc.</title><idno type="pISSN">0035-8711</idno><idno type="eISSN">1365-2966</idno><imprint><publisher>Blackwell Science Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2002-01-01"></date><biblScope unit="volume">329</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="87">87</biblScope><biblScope unit="page" to="101">101</biblScope></imprint></monogr><idno type="istex">CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778</idno><idno type="DOI">10.1046/j.1365-8711.2002.04958.x</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2002</date></creation><langUsage><language ident="en">en</language></langUsage><abstract><p>We have carried out a study of known clusters within the 2dF Galaxy Redshift Survey (2dFGRS) observed areas and have identified 431 Abell, 173APM and 343 EDCC clusters. Precise redshifts, velocity dispersions and new centroids have been measured for the majority of these objects, and this information is used to study the completeness of these catalogues, the level of contamination from foreground and background structures along the cluster's line of sight, the space density of the clusters as a function of redshift, and their velocity dispersion distributions. We find that the Abell and EDCC catalogues are contaminated at the level of about 10 per cent, whereas the APM catalogue suffers only 5 per cent contamination. If we use the original catalogue centroids, the level of contamination rises to approximately 15 per cent for the Abell and EDCC catalogues, showing that the presence of foreground and background groups may alter the richness of clusters in these catalogues. There is a deficiency of clusters at that may correspond to a large underdensity in the Southern hemisphere. From the cumulative distribution of velocity dispersions for these clusters, we derive a space density of clusters of This result is used to constrain models for structure formation; our data favour low-density cosmologies, subject to the usual assumptions concerning the shape and normalization of the power spectrum.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>Keywords</head><item><term>astronomical data bases: miscellaneous</term></item><item><term>surveys</term></item><item><term>galaxies: clusters: general</term></item><item><term>galaxies: distances and redshifts</term></item><item><term>cosmology: observations</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2002-01-01">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><original>false</original><mimetype>text/plain</mimetype><extension>txt</extension><uri>https://api.istex.fr/document/CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="corpus oup" wicri:toSee="no header"><istex:xmlDeclaration>version="1.0"</istex:xmlDeclaration><istex:docType PUBLIC="-//NLM//DTD Journal Publishing DTD v2.3 20070202//EN" URI="journalpublishing.dtd" name="istex:docType"></istex:docType><istex:document><article article-type="research-article"><front><journal-meta><journal-id journal-id-type="hwp">mnras</journal-id><journal-id journal-id-type="publisher-id">mnras</journal-id><journal-title>Monthly Notices of the Royal Astronomical Society</journal-title><abbrev-journal-title>Mon. Not. R. Astron. Soc.</abbrev-journal-title><issn pub-type="ppub">0035-8711</issn><issn pub-type="epub">1365-2966</issn><publisher><publisher-name>Blackwell Science Ltd</publisher-name><publisher-loc>Oxford, UK</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.1046/j.1365-8711.2002.04958.x</article-id><article-categories><subj-group subj-group-type="heading"><subject>Papers</subject></subj-group></article-categories><title-group><article-title>The 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies</article-title></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name><surname>de Propris</surname><given-names>Roberto</given-names></name><xref ref-type="aff" rid="a1"><sup>1</sup></xref><xref ref-type="corresp" rid="cor1"><sup>⋆</sup></xref></contrib><contrib contrib-type="author"><name><surname>Couch</surname><given-names>Warrick J.</given-names></name><xref ref-type="aff" rid="a1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Colless</surname><given-names>Matthew</given-names></name><xref ref-type="aff" rid="a2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Dalton</surname><given-names>Gavin B.</given-names></name><xref ref-type="aff" rid="a3"><sup>3</sup></xref></contrib><contrib contrib-type="author"><name><surname>Collins</surname><given-names>Chris</given-names></name><xref ref-type="aff" rid="a4"><sup>4</sup></xref></contrib><contrib contrib-type="author"><name><surname>Baugh</surname><given-names>Carlton M.</given-names></name><xref ref-type="aff" rid="a5"><sup>5</sup></xref></contrib><contrib contrib-type="author"><name><surname>Bland-Hawthorn</surname><given-names>Joss</given-names></name><xref ref-type="aff" rid="a6"><sup>6</sup></xref></contrib><contrib contrib-type="author"><name><surname>Bridges</surname><given-names>Terry</given-names></name><xref ref-type="aff" rid="a6"><sup>6</sup></xref></contrib><contrib contrib-type="author"><name><surname>Cannon</surname><given-names>Russell</given-names></name><xref ref-type="aff" rid="a6"><sup>6</sup></xref></contrib><contrib contrib-type="author"><name><surname>Cole</surname><given-names>Shaun</given-names></name><xref ref-type="aff" rid="a5"><sup>5</sup></xref></contrib><contrib contrib-type="author"><name><surname>Cross</surname><given-names>Nicholas</given-names></name><xref ref-type="aff" rid="a7"><sup>7</sup></xref></contrib><contrib contrib-type="author"><name><surname>Deeley</surname><given-names>Kathryn</given-names></name><xref ref-type="aff" rid="a1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Driver</surname><given-names>Simon P.</given-names></name><xref ref-type="aff" rid="a7"><sup>7</sup></xref></contrib><contrib contrib-type="author"><name><surname>Efstathiou</surname><given-names>George</given-names></name><xref ref-type="aff" rid="a8"><sup>8</sup></xref></contrib><contrib contrib-type="author"><name><surname>Ellis</surname><given-names>Richard S.</given-names></name><xref ref-type="aff" rid="a9"><sup>9</sup></xref></contrib><contrib contrib-type="author"><name><surname>Frenk</surname><given-names>Carlos S.</given-names></name><xref ref-type="aff" rid="a5"><sup>5</sup></xref></contrib><contrib contrib-type="author"><name><surname>Glazebrook</surname><given-names>Karl</given-names></name><xref ref-type="aff" rid="a10"><sup>10</sup></xref></contrib><contrib contrib-type="author"><name><surname>Jackson</surname><given-names>Carole</given-names></name><xref ref-type="aff" rid="a2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Lahav</surname><given-names>Ofer</given-names></name><xref ref-type="aff" rid="a11"><sup>11</sup></xref></contrib><contrib contrib-type="author"><name><surname>Lewis</surname><given-names>Ian</given-names></name><xref ref-type="aff" rid="a6"><sup>6</sup></xref></contrib><contrib contrib-type="author"><name><surname>Lumsden</surname><given-names>Stuart</given-names></name><xref ref-type="aff" rid="a12"><sup>12</sup></xref></contrib><contrib contrib-type="author"><name><surname>Maddox</surname><given-names>Steve</given-names></name><xref ref-type="aff" rid="a13"><sup>13</sup></xref></contrib><contrib contrib-type="author"><name><surname>Madgwick</surname><given-names>Darren</given-names></name><xref ref-type="aff" rid="a8"><sup>8</sup></xref></contrib><contrib contrib-type="author"><name><surname>Moody</surname><given-names>Stephen</given-names></name><xref ref-type="aff" rid="a8"><sup>8</sup></xref><xref ref-type="aff" rid="a9"><sup>9</sup></xref></contrib><contrib contrib-type="author"><name><surname>Norberg</surname><given-names>Peder</given-names></name><xref ref-type="aff" rid="a5"><sup>5</sup></xref></contrib><contrib contrib-type="author"><name><surname>Peacock</surname><given-names>John A.</given-names></name><xref ref-type="aff" rid="a14"><sup>14</sup></xref></contrib><contrib contrib-type="author"><name><surname>Percival</surname><given-names>Will</given-names></name><xref ref-type="aff" rid="a14"><sup>14</sup></xref></contrib><contrib contrib-type="author"><name><surname>Peterson</surname><given-names>Bruce A.</given-names></name><xref ref-type="aff" rid="a2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Sutherland</surname><given-names>Will</given-names></name><xref ref-type="aff" rid="a3"><sup>3</sup></xref></contrib><contrib contrib-type="author"><name><surname>Taylor</surname><given-names>Keith</given-names></name><xref ref-type="aff" rid="a9"><sup>9</sup></xref></contrib><aff id="a1"><label><sup>1</sup></label>Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia</aff><aff id="a2"><label><sup>2</sup></label>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</aff><aff id="a3"><label><sup>3</sup></label>Department of Physics, Keble Road, Oxford OX1 3RH</aff><aff id="a4"><label><sup>4</sup></label>Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Birkenhead L14 1LD</aff><aff id="a5"><label><sup>5</sup></label>Department of Physics, South Road, Durham DH1 3LE</aff><aff id="a6"><label><sup>6</sup></label>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</aff><aff id="a7"><label><sup>7</sup></label>School of Physics and Astronomy, North Haugh, St Andrews, Fife KY6 9SS</aff><aff id="a8"><label><sup>8</sup></label>Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA</aff><aff id="a9"><label><sup>9</sup></label>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</aff><aff id="a10"><label><sup>10</sup></label>Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218-2686, USA</aff><aff id="a11"><label><sup>11</sup></label>Racah Institute of Physics, The Hebrew University, Jerusalem, 91904, Israel</aff><aff id="a12"><label><sup>12</sup></label>Department of Physics, University of Leeds, Woodhouse Lane, Leeds LS2 9JT</aff><aff id="a13"><label><sup>13</sup></label>School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD</aff><aff id="a14"><label><sup>14</sup></label>Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</aff></contrib-group><author-notes><corresp id="cor1"><label><sup>⋆</sup></label><email>propris@bat.phys.unsw.edu.au</email></corresp></author-notes><pub-date pub-type="ppub"><day>1</day><month>1</month><year>2002</year></pub-date><volume>329</volume><issue>1</issue><fpage>87</fpage><lpage>101</lpage><history><date date-type="received"><day>10</day><month>8</month><year>2001</year></date><date date-type="accepted"><day>28</day><month>8</month><year>2001</year></date></history><permissions><copyright-statement>© 2002 RAS</copyright-statement><copyright-year>2002</copyright-year></permissions><abstract><title>Abstract</title><p>We have carried out a study of known clusters within the 2dF Galaxy Redshift Survey (2dFGRS) observed areas and have identified 431 Abell, 173APM and 343 EDCC clusters. Precise redshifts, velocity dispersions and new centroids have been measured for the majority of these objects, and this information is used to study the completeness of these catalogues, the level of contamination from foreground and background structures along the cluster's line of sight, the space density of the clusters as a function of redshift, and their velocity dispersion distributions. We find that the Abell and EDCC catalogues are contaminated at the level of about 10 per cent, whereas the APM catalogue suffers only 5 per cent contamination. If we use the original catalogue centroids, the level of contamination rises to approximately 15 per cent for the Abell and EDCC catalogues, showing that the presence of foreground and background groups may alter the richness of clusters in these catalogues. There is a deficiency of clusters at <inline-graphic mimetype="image" xlink:href="329-1-87-eq001.tif"></inline-graphic> that may correspond to a large underdensity in the Southern hemisphere. From the cumulative distribution of velocity dispersions for these clusters, we derive a space density of <inline-graphic mimetype="image" xlink:href="329-1-87-eq002.tif"></inline-graphic> clusters of <inline-graphic mimetype="image" xlink:href="329-1-87-eq003.tif"></inline-graphic> This result is used to constrain models for structure formation; our data favour low-density cosmologies, subject to the usual assumptions concerning the shape and normalization of the power spectrum.</p></abstract><kwd-group xml:lang="en"><title>Keywords</title><kwd>astronomical data bases: miscellaneous</kwd><kwd>surveys</kwd><kwd>galaxies: clusters: general</kwd><kwd>galaxies: distances and redshifts</kwd><kwd>cosmology: observations</kwd></kwd-group></article-meta></front></article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo><title>The 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies</title></titleInfo><titleInfo type="alternative" contentType="CDATA"><title>The 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies</title></titleInfo><name type="personal" displayLabel="corresp"><namePart type="given">Roberto</namePart><namePart type="family">de Propris</namePart><affiliation>Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia</affiliation><affiliation>E-mail: propris@bat.phys.unsw.edu.au</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Warrick J.</namePart><namePart type="family">Couch</namePart><affiliation>Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Matthew</namePart><namePart type="family">Colless</namePart><affiliation>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Gavin B.</namePart><namePart type="family">Dalton</namePart><affiliation>Department of Physics, Keble Road, Oxford OX1 3RH</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Chris</namePart><namePart type="family">Collins</namePart><affiliation>Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Birkenhead L14 1LD</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Carlton M.</namePart><namePart type="family">Baugh</namePart><affiliation>Department of Physics, South Road, Durham DH1 3LE</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Joss</namePart><namePart type="family">Bland-Hawthorn</namePart><affiliation>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Terry</namePart><namePart type="family">Bridges</namePart><affiliation>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Russell</namePart><namePart type="family">Cannon</namePart><affiliation>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Shaun</namePart><namePart type="family">Cole</namePart><affiliation>Department of Physics, South Road, Durham DH1 3LE</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Nicholas</namePart><namePart type="family">Cross</namePart><affiliation>School of Physics and Astronomy, North Haugh, St Andrews, Fife KY6 9SS</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Kathryn</namePart><namePart type="family">Deeley</namePart><affiliation>Department of Astrophysics, University of New South Wales, Sydney, NSW 2052, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Simon P.</namePart><namePart type="family">Driver</namePart><affiliation>School of Physics and Astronomy, North Haugh, St Andrews, Fife KY6 9SS</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">George</namePart><namePart type="family">Efstathiou</namePart><affiliation>Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Richard S.</namePart><namePart type="family">Ellis</namePart><affiliation>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Carlos S.</namePart><namePart type="family">Frenk</namePart><affiliation>Department of Physics, South Road, Durham DH1 3LE</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Karl</namePart><namePart type="family">Glazebrook</namePart><affiliation>Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218-2686, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Carole</namePart><namePart type="family">Jackson</namePart><affiliation>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Ofer</namePart><namePart type="family">Lahav</namePart><affiliation>Racah Institute of Physics, The Hebrew University, Jerusalem, 91904, Israel</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Ian</namePart><namePart type="family">Lewis</namePart><affiliation>Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Stuart</namePart><namePart type="family">Lumsden</namePart><affiliation>Department of Physics, University of Leeds, Woodhouse Lane, Leeds LS2 9JT</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Steve</namePart><namePart type="family">Maddox</namePart><affiliation>School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Darren</namePart><namePart type="family">Madgwick</namePart><affiliation>Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Stephen</namePart><namePart type="family">Moody</namePart><affiliation>Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA</affiliation><affiliation>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Peder</namePart><namePart type="family">Norberg</namePart><affiliation>Department of Physics, South Road, Durham DH1 3LE</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">John A.</namePart><namePart type="family">Peacock</namePart><affiliation>Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Will</namePart><namePart type="family">Percival</namePart><affiliation>Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Bruce A.</namePart><namePart type="family">Peterson</namePart><affiliation>Research School of Astronomy and Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Will</namePart><namePart type="family">Sutherland</namePart><affiliation>Department of Physics, Keble Road, Oxford OX1 3RH</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Keith</namePart><namePart type="family">Taylor</namePart><affiliation>Department of Astronomy, Caltech, Pasadena, CA 91125, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="research-article"></genre><originInfo><publisher>Blackwell Science Ltd</publisher><place><placeTerm type="text">Oxford, UK</placeTerm></place><dateIssued encoding="w3cdtf">2002-01-01</dateIssued><copyrightDate encoding="w3cdtf">2002</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract>We have carried out a study of known clusters within the 2dF Galaxy Redshift Survey (2dFGRS) observed areas and have identified 431 Abell, 173APM and 343 EDCC clusters. Precise redshifts, velocity dispersions and new centroids have been measured for the majority of these objects, and this information is used to study the completeness of these catalogues, the level of contamination from foreground and background structures along the cluster's line of sight, the space density of the clusters as a function of redshift, and their velocity dispersion distributions. We find that the Abell and EDCC catalogues are contaminated at the level of about 10 per cent, whereas the APM catalogue suffers only 5 per cent contamination. If we use the original catalogue centroids, the level of contamination rises to approximately 15 per cent for the Abell and EDCC catalogues, showing that the presence of foreground and background groups may alter the richness of clusters in these catalogues. There is a deficiency of clusters at that may correspond to a large underdensity in the Southern hemisphere. From the cumulative distribution of velocity dispersions for these clusters, we derive a space density of clusters of This result is used to constrain models for structure formation; our data favour low-density cosmologies, subject to the usual assumptions concerning the shape and normalization of the power spectrum.</abstract><subject lang="en"><genre>Keywords</genre><topic>astronomical data bases: miscellaneous</topic><topic>surveys</topic><topic>galaxies: clusters: general</topic><topic>galaxies: distances and redshifts</topic><topic>cosmology: observations</topic></subject><relatedItem type="host"><titleInfo><title>Monthly Notices of the Royal Astronomical Society</title></titleInfo><titleInfo type="abbreviated"><title>Mon. Not. R. Astron. Soc.</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">0035-8711</identifier><identifier type="eISSN">1365-2966</identifier><identifier type="PublisherID">mnras</identifier><identifier type="PublisherID-hwp">mnras</identifier><part><date>2002</date><detail type="volume"><caption>vol.</caption><number>329</number></detail><detail type="issue"><caption>no.</caption><number>1</number></detail><extent unit="pages"><start>87</start><end>101</end></extent></part></relatedItem><identifier type="istex">CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778</identifier><identifier type="DOI">10.1046/j.1365-8711.2002.04958.x</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2002 RAS</accessCondition><recordInfo><recordContentSource>OUP</recordContentSource></recordInfo></mods></metadata><annexes><json:item><original>true</original><mimetype>image/jpeg</mimetype><extension>jpeg</extension><uri>https://api.istex.fr/document/CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778/annexes/jpeg</uri></json:item><json:item><original>true</original><mimetype>image/gif</mimetype><extension>gif</extension><uri>https://api.istex.fr/document/CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778/annexes/gif</uri></json:item></annexes><enrichments><istex:catWosTEI uri="https://api.istex.fr/document/CDE40DD78A6FE5C87C6D0D390C3E997FA47A6778/enrichments/catWos"><teiHeader><profileDesc><textClass><classCode scheme="WOS">ASTRONOMY & ASTROPHYSICS</classCode></textClass></profileDesc></teiHeader></istex:catWosTEI></enrichments><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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