A statistical analysis of the galaxy populations of distant luminous X-ray clusters
Identifieur interne : 000593 ( Main/Corpus ); précédent : 000592; suivant : 000594A statistical analysis of the galaxy populations of distant luminous X-ray clusters
Auteurs : Ian Smail ; Alastair C. Edge ; Richard S. Ellis ; Roger D. BlandfordSource :
- Monthly Notices of the Royal Astronomical Society [ 0035-8711 ] ; 1998-01-11.
English descriptors
- KwdEn :
Abstract
We present a deep, multicolour (UBI) CCD survey using the Palomar 5-m telescope of a sample of high X-ray luminosity, distant clusters selected from the ROSAT All-Sky Survey. The 10 clusters lie in the redshift range z= 0.22–0.28, an era in which evolutionary effects have been reported in the properties of cluster galaxy populations.Our clusters thus provide a well-defined sample of the most massive systems at these redshifts with which to quantify the extent and variability of these evolutionary effects. The relatively low redshifts of these clusters also means that simple connections can be made between the galaxy populations of these clusters and their immediate descendents, local rich clusters. Moreover, by concentrating on a narrow redshift range, we can take advantage of the homogeneity of our cluster sample to combine the galaxy catalogues from all the clusters to analyse statistically the bulk properties of their populations. We present an analysis of the cluster galaxy populations using our multicolour data to probe the distribution, luminosities and star formation histories of galaxies in these regions. Our aim is to chart the characteristics of the galaxy populations of massive intermediate redshift clusters and to combine these into a wider scheme for galaxy evolution in high-density environments. The core regions of clusters in our sample contain only a small proportion of star-forming galaxies, and they therefore do not exhibit a classical “Butcher—Oemler” effect. Focusing on the redder cluster galaxies, we find that their integrated luminosity is well correlated with the X-ray temperatures of the clusters, and hence with cluster mass. Furthermore, the typical rest frame UV—optical colours of the luminous elliptical sequences in the clusters exhibit a remarkably small cluster-to-cluster scatter, ≲2 per cent, indicating that these galaxies are highly homogeneous between cluster environments. However, at fainter magnitudes we observe a marked increase in the range of mid-UV colours of galaxies possessing strong 4000-Å breaks, as determined from photometry in ∼7.5 h-1 kpc diameter apertures. In the light of the apparent decline in the population of S0 galaxies seen in distant z≳0.4, clusters, and in view of the luminosities and colours of this population, we propose that they may be the progenitors of the dominant S0 population of rich local clusters, caught in the final stage before they become completely quiescent. Further studies of this population will prove a necessary link with which to connect the evolution observed in cluster populations at high redshift with the nature of the final remnants locally. Observations in the rest frame UV will be important in these studies owing to the relative ease of detecting the signature of previous activity in this spectral region.
Url:
DOI: 10.1111/j.1365-8711.1998.2932124.x
Links to Exploration step
ISTEX:CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>A statistical analysis of the galaxy populations of distant luminous X-ray clusters</title><author><name sortKey="Smail, Ian" sort="Smail, Ian" uniqKey="Smail I" first="Ian" last="Smail">Ian Smail</name><affiliation><mods:affiliation>Department of Physics, University of Durham, Durham DH1 3LE;</mods:affiliation></affiliation></author><author><name sortKey="Edge, Alastair C" sort="Edge, Alastair C" uniqKey="Edge A" first="Alastair C." last="Edge">Alastair C. Edge</name><affiliation><mods:affiliation>Institute of Astronomy, 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>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA;</mods:affiliation></affiliation></author><author><name sortKey="Blandford, Roger D" sort="Blandford, Roger D" uniqKey="Blandford R" first="Roger D." last="Blandford">Roger D. Blandford</name><affiliation><mods:affiliation>Theoretical Astrophysics, Caltech 130–33, Pasadena CA 91125, USA</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7</idno><date when="1998" year="1998">1998</date><idno type="doi">10.1111/j.1365-8711.1998.2932124.x</idno><idno type="url">https://api.istex.fr/document/CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7/fulltext/pdf</idno><idno type="wicri:Area/Main/Corpus">000593</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">A statistical analysis of the galaxy populations of distant luminous X-ray clusters</title><author><name sortKey="Smail, Ian" sort="Smail, Ian" uniqKey="Smail I" first="Ian" last="Smail">Ian Smail</name><affiliation><mods:affiliation>Department of Physics, University of Durham, Durham DH1 3LE;</mods:affiliation></affiliation></author><author><name sortKey="Edge, Alastair C" sort="Edge, Alastair C" uniqKey="Edge A" first="Alastair C." last="Edge">Alastair C. Edge</name><affiliation><mods:affiliation>Institute of Astronomy, 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>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA;</mods:affiliation></affiliation></author><author><name sortKey="Blandford, Roger D" sort="Blandford, Roger D" uniqKey="Blandford R" first="Roger D." last="Blandford">Roger D. Blandford</name><affiliation><mods:affiliation>Theoretical Astrophysics, Caltech 130–33, 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, U.K. and Cambridge, USA</pubPlace><date type="published" when="1998-01-11">1998-01-11</date><biblScope unit="volume">293</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="124">124</biblScope><biblScope unit="page" to="144">144</biblScope></imprint><idno type="ISSN">0035-8711</idno></series><idno type="istex">CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7</idno><idno type="DOI">10.1111/j.1365-8711.1998.2932124.x</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0035-8711</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>X-rays:general</term><term>cosmology:observations</term><term>galaxies:clusters:general</term><term>galaxies:luminosity function, galaxies:mass function</term><term>galaxies:photometry</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">We present a deep, multicolour (UBI) CCD survey using the Palomar 5-m telescope of a sample of high X-ray luminosity, distant clusters selected from the ROSAT All-Sky Survey. The 10 clusters lie in the redshift range z= 0.22–0.28, an era in which evolutionary effects have been reported in the properties of cluster galaxy populations.Our clusters thus provide a well-defined sample of the most massive systems at these redshifts with which to quantify the extent and variability of these evolutionary effects. The relatively low redshifts of these clusters also means that simple connections can be made between the galaxy populations of these clusters and their immediate descendents, local rich clusters. Moreover, by concentrating on a narrow redshift range, we can take advantage of the homogeneity of our cluster sample to combine the galaxy catalogues from all the clusters to analyse statistically the bulk properties of their populations. We present an analysis of the cluster galaxy populations using our multicolour data to probe the distribution, luminosities and star formation histories of galaxies in these regions. Our aim is to chart the characteristics of the galaxy populations of massive intermediate redshift clusters and to combine these into a wider scheme for galaxy evolution in high-density environments. The core regions of clusters in our sample contain only a small proportion of star-forming galaxies, and they therefore do not exhibit a classical “Butcher—Oemler” effect. Focusing on the redder cluster galaxies, we find that their integrated luminosity is well correlated with the X-ray temperatures of the clusters, and hence with cluster mass. Furthermore, the typical rest frame UV—optical colours of the luminous elliptical sequences in the clusters exhibit a remarkably small cluster-to-cluster scatter, ≲2 per cent, indicating that these galaxies are highly homogeneous between cluster environments. However, at fainter magnitudes we observe a marked increase in the range of mid-UV colours of galaxies possessing strong 4000-Å breaks, as determined from photometry in ∼7.5 h-1 kpc diameter apertures. In the light of the apparent decline in the population of S0 galaxies seen in distant z≳0.4, clusters, and in view of the luminosities and colours of this population, we propose that they may be the progenitors of the dominant S0 population of rich local clusters, caught in the final stage before they become completely quiescent. Further studies of this population will prove a necessary link with which to connect the evolution observed in cluster populations at high redshift with the nature of the final remnants locally. Observations in the rest frame UV will be important in these studies owing to the relative ease of detecting the signature of previous activity in this spectral region.</div></front></TEI><istex><corpusName>oup</corpusName><author><json:item><name>Ian Smail</name><affiliations><json:string>Department of Physics, University of Durham, Durham DH1 3LE;</json:string></affiliations></json:item><json:item><name>Alastair C. Edge</name><affiliations><json:string>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA;</json:string></affiliations></json:item><json:item><name>Richard S. Ellis</name><affiliations><json:string>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA;</json:string></affiliations></json:item><json:item><name>Roger D. Blandford</name><affiliations><json:string>Theoretical Astrophysics, Caltech 130–33, Pasadena CA 91125, USA</json:string></affiliations></json:item></author><subject><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:luminosity function, galaxies:mass function</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>galaxies:photometry</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>cosmology:observations</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>X-rays:general</value></json:item></subject><language><json:string>eng</json:string></language><originalGenre><json:string>research-article</json:string></originalGenre><abstract>We present a deep, multicolour (UBI) CCD survey using the Palomar 5-m telescope of a sample of high X-ray luminosity, distant clusters selected from the ROSAT All-Sky Survey. The 10 clusters lie in the redshift range z= 0.22–0.28, an era in which evolutionary effects have been reported in the properties of cluster galaxy populations.Our clusters thus provide a well-defined sample of the most massive systems at these redshifts with which to quantify the extent and variability of these evolutionary effects. The relatively low redshifts of these clusters also means that simple connections can be made between the galaxy populations of these clusters and their immediate descendents, local rich clusters. Moreover, by concentrating on a narrow redshift range, we can take advantage of the homogeneity of our cluster sample to combine the galaxy catalogues from all the clusters to analyse statistically the bulk properties of their populations. We present an analysis of the cluster galaxy populations using our multicolour data to probe the distribution, luminosities and star formation histories of galaxies in these regions. Our aim is to chart the characteristics of the galaxy populations of massive intermediate redshift clusters and to combine these into a wider scheme for galaxy evolution in high-density environments. The core regions of clusters in our sample contain only a small proportion of star-forming galaxies, and they therefore do not exhibit a classical “Butcher—Oemler” effect. Focusing on the redder cluster galaxies, we find that their integrated luminosity is well correlated with the X-ray temperatures of the clusters, and hence with cluster mass. Furthermore, the typical rest frame UV—optical colours of the luminous elliptical sequences in the clusters exhibit a remarkably small cluster-to-cluster scatter, ≲2 per cent, indicating that these galaxies are highly homogeneous between cluster environments. However, at fainter magnitudes we observe a marked increase in the range of mid-UV colours of galaxies possessing strong 4000-Å breaks, as determined from photometry in ∼7.5 h-1 kpc diameter apertures. In the light of the apparent decline in the population of S0 galaxies seen in distant z≳0.4, clusters, and in view of the luminosities and colours of this population, we propose that they may be the progenitors of the dominant S0 population of rich local clusters, caught in the final stage before they become completely quiescent. Further studies of this population will prove a necessary link with which to connect the evolution observed in cluster populations at high redshift with the nature of the final remnants locally. Observations in the rest frame UV will be important in these studies owing to the relative ease of detecting the signature of previous activity in this spectral region.</abstract><qualityIndicators><score>3.55</score><pdfVersion>1.4</pdfVersion><pdfPageSize>543.36 x 761.76 pts</pdfPageSize><refBibsNative>false</refBibsNative><keywordCount>5</keywordCount><abstractCharCount>2835</abstractCharCount><pdfWordCount>0</pdfWordCount><pdfCharCount>0</pdfCharCount><pdfPageCount>21</pdfPageCount><abstractWordCount>436</abstractWordCount></qualityIndicators><title>A statistical analysis of the galaxy populations of distant luminous X-ray clusters</title><genre><json:string>research-article</json:string></genre><host><volume>293</volume><publisherId><json:string>mnras</json:string></publisherId><pages><last>144</last><first>124</first></pages><issn><json:string>0035-8711</json:string></issn><issue>2</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>1998</publicationDate><copyrightDate>1998</copyrightDate><doi><json:string>10.1111/j.1365-8711.1998.2932124.x</json:string></doi><id>CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7</id><score>1.5849876</score><fulltext><json:item><original>true</original><mimetype>application/pdf</mimetype><extension>pdf</extension><uri>https://api.istex.fr/document/CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7/fulltext/pdf</uri></json:item><json:item><original>false</original><mimetype>application/zip</mimetype><extension>zip</extension><uri>https://api.istex.fr/document/CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a">A statistical analysis of the galaxy populations of distant luminous X-ray clusters</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>Blackwell Science Ltd</publisher><pubPlace>Oxford, U.K. and Cambridge, USA</pubPlace><availability><p>OUP</p></availability><date>1998</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a">A statistical analysis of the galaxy populations of distant luminous X-ray clusters</title><author xml:id="author-1"><persName><forename type="first">Ian</forename><surname>Smail</surname></persName><affiliation>Department of Physics, University of Durham, Durham DH1 3LE;</affiliation></author><author xml:id="author-2"><persName><forename type="first">Alastair C.</forename><surname>Edge</surname></persName><affiliation>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA;</affiliation></author><author xml:id="author-3"><persName><forename type="first">Richard S.</forename><surname>Ellis</surname></persName><affiliation>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA;</affiliation></author><author xml:id="author-4"><persName><forename type="first">Roger D.</forename><surname>Blandford</surname></persName><affiliation>Theoretical Astrophysics, Caltech 130–33, 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, U.K. and Cambridge, USA</pubPlace><date type="published" when="1998-01-11"></date><biblScope unit="volume">293</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="124">124</biblScope><biblScope unit="page" to="144">144</biblScope></imprint></monogr><idno type="istex">CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7</idno><idno type="DOI">10.1111/j.1365-8711.1998.2932124.x</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1998</date></creation><langUsage><language ident="en">en</language></langUsage><abstract><p>We present a deep, multicolour (UBI) CCD survey using the Palomar 5-m telescope of a sample of high X-ray luminosity, distant clusters selected from the ROSAT All-Sky Survey. The 10 clusters lie in the redshift range z= 0.22–0.28, an era in which evolutionary effects have been reported in the properties of cluster galaxy populations.Our clusters thus provide a well-defined sample of the most massive systems at these redshifts with which to quantify the extent and variability of these evolutionary effects. The relatively low redshifts of these clusters also means that simple connections can be made between the galaxy populations of these clusters and their immediate descendents, local rich clusters. Moreover, by concentrating on a narrow redshift range, we can take advantage of the homogeneity of our cluster sample to combine the galaxy catalogues from all the clusters to analyse statistically the bulk properties of their populations. We present an analysis of the cluster galaxy populations using our multicolour data to probe the distribution, luminosities and star formation histories of galaxies in these regions. Our aim is to chart the characteristics of the galaxy populations of massive intermediate redshift clusters and to combine these into a wider scheme for galaxy evolution in high-density environments. The core regions of clusters in our sample contain only a small proportion of star-forming galaxies, and they therefore do not exhibit a classical “Butcher—Oemler” effect. Focusing on the redder cluster galaxies, we find that their integrated luminosity is well correlated with the X-ray temperatures of the clusters, and hence with cluster mass. Furthermore, the typical rest frame UV—optical colours of the luminous elliptical sequences in the clusters exhibit a remarkably small cluster-to-cluster scatter, ≲2 per cent, indicating that these galaxies are highly homogeneous between cluster environments. However, at fainter magnitudes we observe a marked increase in the range of mid-UV colours of galaxies possessing strong 4000-Å breaks, as determined from photometry in ∼7.5 h-1 kpc diameter apertures. In the light of the apparent decline in the population of S0 galaxies seen in distant z≳0.4, clusters, and in view of the luminosities and colours of this population, we propose that they may be the progenitors of the dominant S0 population of rich local clusters, caught in the final stage before they become completely quiescent. Further studies of this population will prove a necessary link with which to connect the evolution observed in cluster populations at high redshift with the nature of the final remnants locally. Observations in the rest frame UV will be important in these studies owing to the relative ease of detecting the signature of previous activity in this spectral region.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>Key words</head><item><term>galaxies:clusters:general</term></item><item><term>galaxies:luminosity function, galaxies:mass function</term></item><item><term>galaxies:photometry</term></item><item><term>cosmology:observations</term></item><item><term>X-rays:general</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1998-01-11">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><original>false</original><mimetype>text/plain</mimetype><extension>txt</extension><uri>https://api.istex.fr/document/CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7/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, U.K. and Cambridge, USA</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.1111/j.1365-8711.1998.2932124.x</article-id><article-categories><subj-group subj-group-type="heading"><subject>Papers</subject></subj-group></article-categories><title-group><article-title>A statistical analysis of the galaxy populations of distant luminous X-ray clusters</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Smail</surname><given-names>Ian</given-names></name><xref ref-type="aff" rid="a1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Edge</surname><given-names>Alastair C.</given-names></name><xref ref-type="aff" rid="a2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Ellis</surname><given-names>Richard S.</given-names></name><xref ref-type="aff" rid="a2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Blandford</surname><given-names>Roger D.</given-names></name><xref ref-type="aff" rid="a3"><sup>3</sup></xref></contrib><aff id="a1"><label>1</label>Department of Physics, University of Durham, Durham DH1 3LE;</aff><aff id="a2"><label>2</label>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA;</aff><aff id="a3"><label>3</label>Theoretical Astrophysics, Caltech 130–33, Pasadena CA 91125, USA</aff></contrib-group><pub-date pub-type="ppub"><day>11</day><month>1</month><year>1998</year></pub-date><volume>293</volume><issue>2</issue><fpage>124</fpage><lpage>144</lpage><history><date date-type="received"><day>27</day><month>9</month><year>1997</year></date><date date-type="accepted"><day>27</day><month>9</month><year>1997</year></date></history><permissions><copyright-year>1998</copyright-year></permissions><abstract><title>Abstract</title><p>We present a deep, multicolour <italic>(UBI)</italic> CCD survey using the Palomar 5-m telescope of a sample of high X-ray luminosity, distant clusters selected from the <italic>ROSAT</italic> All-Sky Survey. The 10 clusters lie in the redshift range <italic>z</italic>= 0.22–0.28, an era in which evolutionary effects have been reported in the properties of cluster galaxy populations.Our clusters thus provide a well-defined sample of the most massive systems at these redshifts with which to quantify the extent and variability of these evolutionary effects. The relatively low redshifts of these clusters also means that simple connections can be made between the galaxy populations of these clusters and their immediate descendents, local rich clusters. Moreover, by concentrating on a narrow redshift range, we can take advantage of the homogeneity of our cluster sample to combine the galaxy catalogues from all the clusters to analyse statistically the bulk properties of their populations. We present an analysis of the cluster galaxy populations using our multicolour data to probe the distribution, luminosities and star formation histories of galaxies in these regions. Our aim is to chart the characteristics of the galaxy populations of massive intermediate redshift clusters and to combine these into a wider scheme for galaxy evolution in high-density environments.</p><p>The core regions of clusters in our sample contain only a small proportion of star-forming galaxies, and they therefore do not exhibit a classical “Butcher—Oemler” effect. Focusing on the redder cluster galaxies, we find that their integrated luminosity is well correlated with the X-ray temperatures of the clusters, and hence with cluster mass. Furthermore, the typical rest frame UV—optical colours of the luminous elliptical sequences in the clusters exhibit a remarkably small cluster-to-cluster scatter, ≲2 per cent, indicating that these galaxies are highly homogeneous between cluster environments. However, at fainter magnitudes we observe a marked increase in the range of mid-UV colours of galaxies possessing strong 4000-Å breaks, as determined from photometry in ∼<italic>7.5 h</italic><sup>-1</sup> kpc diameter apertures. In the light of the apparent decline in the population of S0 galaxies seen in distant <italic>z</italic>≳0.4, clusters, and in view of the luminosities and colours of this population, we propose that they may be the progenitors of the dominant S0 population of rich local clusters, caught in the final stage before they become completely quiescent. Further studies of this population will prove a necessary link with which to connect the evolution observed in cluster populations at high redshift with the nature of the final remnants locally. Observations in the rest frame UV will be important in these studies owing to the relative ease of detecting the signature of previous activity in this spectral region.</p></abstract><kwd-group xml:lang="en"><title>Key words</title><kwd>galaxies:clusters:general</kwd><kwd>galaxies:luminosity function, galaxies:mass function</kwd><kwd>galaxies:photometry</kwd><kwd>cosmology:observations</kwd><kwd>X-rays:general</kwd></kwd-group></article-meta></front></article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo><title>A statistical analysis of the galaxy populations of distant luminous X-ray clusters</title></titleInfo><titleInfo type="alternative" contentType="CDATA"><title>A statistical analysis of the galaxy populations of distant luminous X-ray clusters</title></titleInfo><name type="personal"><namePart type="given">Ian</namePart><namePart type="family">Smail</namePart><affiliation>Department of Physics, University of Durham, Durham DH1 3LE;</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Alastair C.</namePart><namePart type="family">Edge</namePart><affiliation>Institute of Astronomy, 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>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA;</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Roger D.</namePart><namePart type="family">Blandford</namePart><affiliation>Theoretical Astrophysics, Caltech 130–33, 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, U.K. and Cambridge, USA</placeTerm></place><dateIssued encoding="w3cdtf">1998-01-11</dateIssued><copyrightDate encoding="w3cdtf">1998</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 present a deep, multicolour (UBI) CCD survey using the Palomar 5-m telescope of a sample of high X-ray luminosity, distant clusters selected from the ROSAT All-Sky Survey. The 10 clusters lie in the redshift range z= 0.22–0.28, an era in which evolutionary effects have been reported in the properties of cluster galaxy populations.Our clusters thus provide a well-defined sample of the most massive systems at these redshifts with which to quantify the extent and variability of these evolutionary effects. The relatively low redshifts of these clusters also means that simple connections can be made between the galaxy populations of these clusters and their immediate descendents, local rich clusters. Moreover, by concentrating on a narrow redshift range, we can take advantage of the homogeneity of our cluster sample to combine the galaxy catalogues from all the clusters to analyse statistically the bulk properties of their populations. We present an analysis of the cluster galaxy populations using our multicolour data to probe the distribution, luminosities and star formation histories of galaxies in these regions. Our aim is to chart the characteristics of the galaxy populations of massive intermediate redshift clusters and to combine these into a wider scheme for galaxy evolution in high-density environments. The core regions of clusters in our sample contain only a small proportion of star-forming galaxies, and they therefore do not exhibit a classical “Butcher—Oemler” effect. Focusing on the redder cluster galaxies, we find that their integrated luminosity is well correlated with the X-ray temperatures of the clusters, and hence with cluster mass. Furthermore, the typical rest frame UV—optical colours of the luminous elliptical sequences in the clusters exhibit a remarkably small cluster-to-cluster scatter, ≲2 per cent, indicating that these galaxies are highly homogeneous between cluster environments. However, at fainter magnitudes we observe a marked increase in the range of mid-UV colours of galaxies possessing strong 4000-Å breaks, as determined from photometry in ∼7.5 h-1 kpc diameter apertures. In the light of the apparent decline in the population of S0 galaxies seen in distant z≳0.4, clusters, and in view of the luminosities and colours of this population, we propose that they may be the progenitors of the dominant S0 population of rich local clusters, caught in the final stage before they become completely quiescent. Further studies of this population will prove a necessary link with which to connect the evolution observed in cluster populations at high redshift with the nature of the final remnants locally. Observations in the rest frame UV will be important in these studies owing to the relative ease of detecting the signature of previous activity in this spectral region.</abstract><subject lang="en"><genre>Key words</genre><topic>galaxies:clusters:general</topic><topic>galaxies:luminosity function, galaxies:mass function</topic><topic>galaxies:photometry</topic><topic>cosmology:observations</topic><topic>X-rays:general</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>1998</date><detail type="volume"><caption>vol.</caption><number>293</number></detail><detail type="issue"><caption>no.</caption><number>2</number></detail><extent unit="pages"><start>124</start><end>144</end></extent></part></relatedItem><identifier type="istex">CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7</identifier><identifier type="DOI">10.1111/j.1365-8711.1998.2932124.x</identifier><recordInfo><recordContentSource>OUP</recordContentSource></recordInfo></mods></metadata><enrichments><istex:catWosTEI uri="https://api.istex.fr/document/CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7/enrichments/catWos"><teiHeader><profileDesc><textClass><classCode scheme="WOS">ASTRONOMY & ASTROPHYSICS</classCode></textClass></profileDesc></teiHeader></istex:catWosTEI><json:item><type>refBibs</type><uri>https://api.istex.fr/document/CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7/enrichments/refBibs</uri></json:item></enrichments><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Amerique/explor/CaltechV1/Data/Main/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000593 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Corpus/biblio.hfd -nk 000593 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Amerique
|area= CaltechV1
|flux= Main
|étape= Corpus
|type= RBID
|clé= ISTEX:CE4F0341E1071A4C548A087B30C7B6DAE6FBB5E7
|texte= A statistical analysis of the galaxy populations of distant luminous X-ray clusters
}}
| This area was generated with Dilib version V0.6.32. |  |