Newly discovered Wolf–Rayet and weak emission‐line central stars of planetary nebulae
Identifieur interne : 001103 ( Istex/Corpus ); précédent : 001102; suivant : 001104Newly discovered Wolf–Rayet and weak emission‐line central stars of planetary nebulae
Auteurs : K. Depew ; Q. A. Parker ; B. Miszalski ; O. De Marco ; D. J. Frew ; A. Acker ; A. V. Kovacevic ; R. G. SharpSource :
- Monthly Notices of the Royal Astronomical Society [ 0035-8711 ] ; 2011-07-11.
English descriptors
- KwdEn :
- Abell, Acker, Acker neiner, Astron, August, Barlow, Central star, Central star exhibits, Central stars, Chemical abundances, Crowther, Cspn, Cspne, Doublet, Emission lines, February, Frew, Frew parker, Fwhm, Galactic, Marco, Mash, Mash sample, Mash survey, Miszalski, Mnras, Monthly notices, Nebula, Nebular, Nebular component, Nebular lines, Neiner, Observation details, Planetary nebulae, Prominent lines, Spectral subtype, Stellar, Subclass, Tylenda, Weak cspne, Wels, Wels wels.
- Teeft :
- Abell, Acker, Acker neiner, Astron, August, Barlow, Central star, Central star exhibits, Central stars, Chemical abundances, Crowther, Cspn, Cspne, Doublet, Emission lines, February, Frew, Frew parker, Fwhm, Galactic, Marco, Mash, Mash sample, Mash survey, Miszalski, Mnras, Monthly notices, Nebula, Nebular, Nebular component, Nebular lines, Neiner, Observation details, Planetary nebulae, Prominent lines, Spectral subtype, Stellar, Subclass, Tylenda, Weak cspne, Wels, Wels wels.
Abstract
We present the spectra of 32 previously unpublished confirmed and candidate Wolf–Rayet ([WR]) and weak emission‐line (WELS) central stars of planetary nebulae (CSPNe). 18 stars have been discovered in the Macquarie/AAO/Strasbourg Hα (MASH) PN survey sample, and we have also uncovered 14 confirmed and candidate [WR]s and WELS among the CSPNe of previously known PNe. Spectral classifications have been undertaken using both Acker & Neiner and Crowther, De Marco & Barlow schemes. 22 members in this sample are identified as probable [WR]s; the remaining 10 appear to be WELS. Observations undertaken as part of the MASH spectroscopic survey have now increased the number of known [WR]s by ∼30 per cent. This will permit a better analysis of [WR] subclass distribution, metallicity effects and evolutionary sequences in these uncommon objects.
Url:
DOI: 10.1111/j.1365-2966.2011.18337.x
Links to Exploration step
ISTEX:59ED1B043080A167DCFF204224F5386E084F65D4Le document en format XML
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Parker</name><affiliation><mods:affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</mods:affiliation></affiliation><affiliation><mods:affiliation>Australian Astronomical Observatory, PO Box 296, Epping, NSW 1710, Australia</mods:affiliation></affiliation></author><author><name sortKey="Miszalski, B" sort="Miszalski, B" uniqKey="Miszalski B" first="B." last="Miszalski">B. Miszalski</name><affiliation><mods:affiliation>Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield AL10 9AB</mods:affiliation></affiliation></author><author><name sortKey="De Marco, O" sort="De Marco, O" uniqKey="De Marco O" first="O." last="De Marco">O. De Marco</name><affiliation><mods:affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</mods:affiliation></affiliation></author><author><name sortKey="Frew, D J" sort="Frew, D J" uniqKey="Frew D" first="D. J." last="Frew">D. J. 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Acker</name><affiliation><mods:affiliation>Observatoire de Strasbourg, 11 Rue de l’Université, 67000 Strasbourg, France</mods:affiliation></affiliation></author><author><name sortKey="Kovacevic, A V" sort="Kovacevic, A V" uniqKey="Kovacevic A" first="A. V." last="Kovacevic">A. V. Kovacevic</name><affiliation><mods:affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</mods:affiliation></affiliation></author><author><name sortKey="Sharp, R G" sort="Sharp, R G" uniqKey="Sharp R" first="R. G." last="Sharp">R. G. 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Spectral classifications have been undertaken using both Acker & Neiner and Crowther, De Marco & Barlow schemes. 22 members in this sample are identified as probable [WR]s; the remaining 10 appear to be WELS. Observations undertaken as part of the MASH spectroscopic survey have now increased the number of known [WR]s by ∼30 per cent. This will permit a better analysis of [WR] subclass distribution, metallicity effects and evolutionary sequences in these uncommon objects.</div></front></TEI><istex><corpusName>wiley</corpusName><keywords><teeft><json:string>wels</json:string><json:string>doublet</json:string><json:string>mnras</json:string><json:string>cspne</json:string><json:string>central stars</json:string><json:string>acker</json:string><json:string>nebula</json:string><json:string>monthly notices</json:string><json:string>miszalski</json:string><json:string>fwhm</json:string><json:string>mash</json:string><json:string>marco</json:string><json:string>astron</json:string><json:string>crowther</json:string><json:string>tylenda</json:string><json:string>central star</json:string><json:string>frew</json:string><json:string>subclass</json:string><json:string>neiner</json:string><json:string>august</json:string><json:string>cspn</json:string><json:string>february</json:string><json:string>acker neiner</json:string><json:string>barlow</json:string><json:string>galactic</json:string><json:string>weak cspne</json:string><json:string>nebular</json:string><json:string>stellar</json:string><json:string>planetary nebulae</json:string><json:string>abell</json:string><json:string>nebular component</json:string><json:string>prominent lines</json:string><json:string>mash sample</json:string><json:string>observation details</json:string><json:string>emission lines</json:string><json:string>frew parker</json:string><json:string>chemical abundances</json:string><json:string>wels wels</json:string><json:string>spectral subtype</json:string><json:string>mash survey</json:string><json:string>central star exhibits</json:string><json:string>nebular lines</json:string></teeft></keywords><author><json:item><name>K. DePew</name><affiliations><json:string>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</json:string><json:string>E-mail: kyle.depew@mq.edu.au</json:string></affiliations></json:item><json:item><name>Q. A. Parker</name><affiliations><json:string>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</json:string><json:string>Australian Astronomical Observatory, PO Box 296, Epping, NSW 1710, Australia</json:string></affiliations></json:item><json:item><name>B. Miszalski</name><affiliations><json:string>Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield AL10 9AB</json:string></affiliations></json:item><json:item><name>O. De Marco</name><affiliations><json:string>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</json:string></affiliations></json:item><json:item><name>D. J. Frew</name><affiliations><json:string>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</json:string></affiliations></json:item><json:item><name>A. Acker</name><affiliations><json:string>Observatoire de Strasbourg, 11 Rue de l’Université, 67000 Strasbourg, France</json:string></affiliations></json:item><json:item><name>A. V. Kovacevic</name><affiliations><json:string>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</json:string></affiliations></json:item><json:item><name>R. G. Sharp</name><affiliations><json:string>Australian Astronomical Observatory, PO Box 296, Epping, NSW 1710, Australia</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>stars: Wolf–Rayet</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>planetary nebulae: general</value></json:item></subject><articleId><json:string>MNR18337</json:string></articleId><arkIstex>ark:/67375/WNG-MH7XJLLM-G</arkIstex><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><abstract>We present the spectra of 32 previously unpublished confirmed and candidate Wolf–Rayet ([WR]) and weak emission‐line (WELS) central stars of planetary nebulae (CSPNe). 18 stars have been discovered in the Macquarie/AAO/Strasbourg Hα (MASH) PN survey sample, and we have also uncovered 14 confirmed and candidate [WR]s and WELS among the CSPNe of previously known PNe. Spectral classifications have been undertaken using both Acker & Neiner and Crowther, De Marco & Barlow schemes. 22 members in this sample are identified as probable [WR]s; the remaining 10 appear to be WELS. Observations undertaken as part of the MASH spectroscopic survey have now increased the number of known [WR]s by ∼30 per cent. This will permit a better analysis of [WR] subclass distribution, metallicity effects and evolutionary sequences in these uncommon objects.</abstract><qualityIndicators><refBibsNative>true</refBibsNative><abstractWordCount>128</abstractWordCount><abstractCharCount>843</abstractCharCount><keywordCount>2</keywordCount><score>8.536</score><pdfWordCount>9149</pdfWordCount><pdfCharCount>52377</pdfCharCount><pdfVersion>1.4</pdfVersion><pdfPageCount>16</pdfPageCount><pdfPageSize>595.274 x 782.286 pts</pdfPageSize></qualityIndicators><title>Newly discovered Wolf–Rayet and weak emission‐line central stars of planetary nebulae</title><genre><json:string>article</json:string></genre><host><title>Monthly Notices of the Royal Astronomical Society</title><language><json:string>unknown</json:string></language><doi><json:string>10.1111/(ISSN)1365-2966</json:string></doi><issn><json:string>0035-8711</json:string></issn><eissn><json:string>1365-2966</json:string></eissn><publisherId><json:string>MNR</json:string></publisherId><volume>414</volume><issue>4</issue><pages><first>2812</first><last>2827</last><total>16</total></pages><genre><json:string>journal</json:string></genre></host><namedEntities><unitex><date><json:string>2011</json:string><json:string>1990s</json:string><json:string>1143</json:string><json:string>1960s</json:string><json:string>2003</json:string><json:string>2008</json:string><json:string>4650</json:string><json:string>1200</json:string></date><geogName></geogName><orgName><json:string>National Science Foundation</json:string><json:string>UK Schmidt Telescope and Stephen</json:string><json:string>UK Schmidt</json:string><json:string>Australia Astronomical Observatory, PO Box</json:string><json:string>University of Massachusetts</json:string><json:string>Infrared Processing and Analysis Center</json:string><json:string>California Institute of Technology</json:string><json:string>UK Schmidt SSO/UK Schmidt SSO</json:string><json:string>Astrophysics Research, University of Hertfordshire, College Lane, Hat</json:string><json:string>Macquarie University</json:string><json:string>National Aeronautics and Space</json:string><json:string>UK Schmidt SSO/UK Schmidt SSO/AAT SSO/AAT Observatorya</json:string></orgName><orgName_funder></orgName_funder><orgName_provider></orgName_provider><persName><json:string>A. Acker</json:string><json:string>Sky Survey</json:string><json:string>D. J. Frew</json:string><json:string>A. Parker</json:string><json:string>Spring Observatory</json:string><json:string>La Silla</json:string><json:string>Scott Croom</json:string><json:string>Wolf</json:string><json:string>A. V. Kovacevic</json:string><json:string>K. DePew</json:string><json:string>Donna Burton</json:string><json:string>Klaus Werner</json:string><json:string>Date</json:string></persName><placeName><json:string>Strasbourg</json:string><json:string>WELS</json:string><json:string>France</json:string></placeName><ref_url><json:string>http://vizier.cfa.harvard.edu/viz-bin/VizieR</json:string></ref_url><ref_bibl><json:string>Sabogal et al. (2008)</json:string><json:string>Parker, Watson & Miziarski 1998</json:string><json:string>Werner, Rauch & Kruk 2007</json:string><json:string>Todt et al. 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(2010)</json:string><json:string>De Marco & Crowther 1999</json:string><json:string>Acker et al. 1992</json:string></ref_bibl><bibl></bibl></unitex></namedEntities><ark><json:string>ark:/67375/WNG-MH7XJLLM-G</json:string></ark><categories><wos><json:string>1 - science</json:string><json:string>2 - astronomy & astrophysics</json:string></wos><scienceMetrix><json:string>1 - natural sciences</json:string><json:string>2 - physics & astronomy</json:string><json:string>3 - astronomy & astrophysics</json:string></scienceMetrix><scopus><json:string>1 - Physical Sciences</json:string><json:string>2 - Earth and Planetary Sciences</json:string><json:string>3 - Space and Planetary Science</json:string><json:string>1 - Physical Sciences</json:string><json:string>2 - Physics and Astronomy</json:string><json:string>3 - Astronomy and Astrophysics</json:string></scopus><inist><json:string>1 - sciences appliquees, technologies et medecines</json:string><json:string>2 - sciences biologiques et medicales</json:string><json:string>3 - sciences biologiques fondamentales et appliquees. psychologie</json:string></inist></categories><publicationDate>2011</publicationDate><copyrightDate>2011</copyrightDate><doi><json:string>10.1111/j.1365-2966.2011.18337.x</json:string></doi><id>59ED1B043080A167DCFF204224F5386E084F65D4</id><score>1</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/59ED1B043080A167DCFF204224F5386E084F65D4/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/59ED1B043080A167DCFF204224F5386E084F65D4/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/59ED1B043080A167DCFF204224F5386E084F65D4/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main">Newly discovered Wolf–Rayet and weak emission‐line central stars of planetary nebulae</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><availability><licence>© 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS</licence></availability><date type="published" when="2011-07-11"></date></publicationStmt><notesStmt><note type="content-type" subtype="article" source="article" scheme="https://content-type.data.istex.fr/ark:/67375/XTP-6N5SZHKN-D">article</note><note type="publication-type" subtype="journal" scheme="https://publication-type.data.istex.fr/ark:/67375/JMC-0GLKJH51-B">journal</note></notesStmt><sourceDesc><biblStruct type="article"><analytic><title level="a" type="main">Newly discovered Wolf–Rayet and weak emission‐line central stars of planetary nebulae</title><title level="a" type="short">New Wolf–Rayet and weak emission‐line CSPNe</title><author xml:id="author-0000" role="corresp"><persName><forename type="first">K.</forename><surname>DePew</surname></persName><affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia<address><country key="AU"></country></address></affiliation><affiliation>E‐mail: kyle.depew@mq.edu.au</affiliation></author><author xml:id="author-0001"><persName><forename type="first">Q. A.</forename><surname>Parker</surname></persName><affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia<address><country key="AU"></country></address></affiliation><affiliation>Australian Astronomical Observatory, PO Box 296, Epping, NSW 1710, Australia<address><country key="AU"></country></address></affiliation></author><author xml:id="author-0002"><persName><forename type="first">B.</forename><surname>Miszalski</surname></persName><affiliation>Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield AL10 9AB</affiliation></author><author xml:id="author-0003"><persName><forename type="first">O.</forename><surname>De Marco</surname></persName><affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia<address><country key="AU"></country></address></affiliation></author><author xml:id="author-0004"><persName><forename type="first">D. J.</forename><surname>Frew</surname></persName><affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia<address><country key="AU"></country></address></affiliation></author><author xml:id="author-0005"><persName><forename type="first">A.</forename><surname>Acker</surname></persName><affiliation>Observatoire de Strasbourg, 11 Rue de l’Université, 67000 Strasbourg, France<address><country key="FR"></country></address></affiliation></author><author xml:id="author-0006"><persName><forename type="first">A. V.</forename><surname>Kovacevic</surname></persName><affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia<address><country key="AU"></country></address></affiliation></author><author xml:id="author-0007"><persName><forename type="first">R. G.</forename><surname>Sharp</surname></persName><affiliation>Australian Astronomical Observatory, PO Box 296, Epping, NSW 1710, Australia<address><country key="AU"></country></address></affiliation></author><idno type="istex">59ED1B043080A167DCFF204224F5386E084F65D4</idno><idno type="ark">ark:/67375/WNG-MH7XJLLM-G</idno><idno type="DOI">10.1111/j.1365-2966.2011.18337.x</idno><idno type="unit">MNR18337</idno><idno type="toTypesetVersion">file:MNR.MNR18337.pdf</idno></analytic><monogr><title level="j" type="main">Monthly Notices of the Royal Astronomical Society</title><title level="j" type="alt">MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY</title><idno type="pISSN">0035-8711</idno><idno type="eISSN">1365-2966</idno><idno type="book-DOI">10.1111/(ISSN)1365-2966</idno><idno type="book-part-DOI">10.1111/mnr.2011.414.issue-4</idno><idno type="product">MNR</idno><idno type="publisherDivision">ST</idno><imprint><biblScope unit="vol">414</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="2812">2812</biblScope><biblScope unit="page" to="2827">2827</biblScope><biblScope unit="page-count">16</biblScope><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2011-07-11"></date></imprint></monogr></biblStruct></sourceDesc></fileDesc><profileDesc><abstract xml:lang="en" style="main"><head>ABSTRACT</head><p>We present the spectra of 32 previously unpublished confirmed and candidate Wolf–Rayet ([WR]) and weak emission‐line (WELS) central stars of planetary nebulae (CSPNe). 18 stars have been discovered in the Macquarie/AAO/Strasbourg H<emph><span>α</span></emph> (MASH) PN survey sample, and we have also uncovered 14 confirmed and candidate [WR]s and WELS among the CSPNe of previously known PNe. Spectral classifications have been undertaken using both Acker & Neiner and Crowther, De Marco & Barlow schemes. 22 members in this sample are identified as probable [WR]s; the remaining 10 appear to be WELS. Observations undertaken as part of the MASH spectroscopic survey have now increased the number of known [WR]s by <emph><span>∼</span></emph>30 per cent. This will permit a better analysis of [WR] subclass distribution, metallicity effects and evolutionary sequences in these uncommon objects.</p></abstract><textClass><keywords xml:lang="en"><term xml:id="k1">stars: Wolf–Rayet</term><term xml:id="k2">planetary nebulae: general</term></keywords><keywords rend="tocHeading1"><term>Papers</term></keywords></textClass><langUsage><language ident="en"></language></langUsage></profileDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/59ED1B043080A167DCFF204224F5386E084F65D4/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>Blackwell Publishing Ltd</publisherName><publisherLoc>Oxford, UK</publisherLoc></publisherInfo><doi origin="wiley" registered="yes">10.1111/(ISSN)1365-2966</doi><issn type="print">0035-8711</issn><issn type="electronic">1365-2966</issn><idGroup><id type="product" value="MNR"></id><id type="publisherDivision" value="ST"></id></idGroup><titleGroup><title type="main" sort="MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY">Monthly Notices of the Royal Astronomical Society</title></titleGroup></publicationMeta><publicationMeta level="part" position="07104"><doi origin="wiley">10.1111/mnr.2011.414.issue-4</doi><numberingGroup><numbering type="journalVolume" number="414">414</numbering><numbering type="journalIssue" number="4">4</numbering></numberingGroup><coverDate startDate="2011-07-11">July 2011</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="4" status="forIssue"><doi origin="wiley">10.1111/j.1365-2966.2011.18337.x</doi><idGroup><id type="unit" value="MNR18337"></id></idGroup><countGroup><count type="pageTotal" number="16"></count></countGroup><titleGroup><title type="tocHeading1">Papers</title></titleGroup><copyright>© 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS</copyright><eventGroup><event type="xmlConverted" agent="Converter:BPG_TO_WML3G version:3.1.6 mode:FullText" date="2012-08-22"></event><event type="publishedOnlineEarlyUnpaginated" date="2011-06-16"></event><event type="publishedOnlineFinalForm" date="2011-07-01"></event><event type="firstOnline" date="2011-06-16"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-02-03"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-10-31"></event></eventGroup><numberingGroup><numbering type="pageFirst" number="2812">2812</numbering><numbering type="pageLast" number="2827">2827</numbering></numberingGroup><correspondenceTo>
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DePew et al.</i></title><title type="short"><i>New Wolf–Rayet and weak emission‐line CSPNe</i></title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#a1" corresponding="yes"><personName><givenNames>K.</givenNames><familyName>DePew</familyName></personName></creator><creator creatorRole="author" xml:id="cr2" affiliationRef="#a1 #a2"><personName><givenNames>Q. A.</givenNames><familyName>Parker</familyName></personName></creator><creator creatorRole="author" xml:id="cr3" affiliationRef="#a3"><personName><givenNames>B.</givenNames><familyName>Miszalski</familyName></personName></creator><creator creatorRole="author" xml:id="cr4" affiliationRef="#a1"><personName><givenNames>O.</givenNames><familyName>De Marco</familyName></personName></creator><creator creatorRole="author" xml:id="cr5" affiliationRef="#a1"><personName><givenNames>D. J.</givenNames><familyName>Frew</familyName></personName></creator><creator creatorRole="author" xml:id="cr6" affiliationRef="#a4"><personName><givenNames>A.</givenNames><familyName>Acker</familyName></personName></creator><creator creatorRole="author" xml:id="cr7" affiliationRef="#a1"><personName><givenNames>A. V.</givenNames><familyName>Kovacevic</familyName></personName></creator><creator creatorRole="author" xml:id="cr8" affiliationRef="#a2"><personName><givenNames>R. G.</givenNames><familyName>Sharp</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="a1" countryCode="AU"><unparsedAffiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</unparsedAffiliation></affiliation><affiliation xml:id="a2" countryCode="AU"><unparsedAffiliation>Australian Astronomical Observatory, PO Box 296, Epping, NSW 1710, Australia</unparsedAffiliation></affiliation><affiliation xml:id="a3"><unparsedAffiliation>Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield AL10 9AB</unparsedAffiliation></affiliation><affiliation xml:id="a4" countryCode="FR"><unparsedAffiliation>Observatoire de Strasbourg, 11 Rue de l’Université, 67000 Strasbourg, France</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en"><keyword xml:id="k1">stars: Wolf–Rayet</keyword><keyword xml:id="k2">planetary nebulae: general</keyword></keywordGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">ABSTRACT</title><p>We present the spectra of 32 previously unpublished confirmed and candidate Wolf–Rayet ([WR]) and weak emission‐line (WELS) central stars of planetary nebulae (CSPNe). 18 stars have been discovered in the Macquarie/AAO/Strasbourg H<span type="mathematics">α</span> (MASH) PN survey sample, and we have also uncovered 14 confirmed and candidate [WR]s and WELS among the CSPNe of previously known PNe. Spectral classifications have been undertaken using both Acker & Neiner and Crowther, De Marco & Barlow schemes. 22 members in this sample are identified as probable [WR]s; the remaining 10 appear to be WELS. Observations undertaken as part of the MASH spectroscopic survey have now increased the number of known [WR]s by <span type="mathematics">∼</span>30 per cent. This will permit a better analysis of [WR] subclass distribution, metallicity effects and evolutionary sequences in these uncommon objects.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Newly discovered Wolf–Rayet and weak emission‐line central stars of planetary nebulae</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>New Wolf–Rayet and weak emission‐line CSPNe</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Newly discovered Wolf–Rayet and weak emission‐line central stars of planetary nebulae</title></titleInfo><name type="personal"><namePart type="given">K.</namePart><namePart type="family">DePew</namePart><affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</affiliation><affiliation>E-mail: kyle.depew@mq.edu.au</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Q. A.</namePart><namePart type="family">Parker</namePart><affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</affiliation><affiliation>Australian Astronomical Observatory, PO Box 296, Epping, NSW 1710, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">B.</namePart><namePart type="family">Miszalski</namePart><affiliation>Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield AL10 9AB</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">O.</namePart><namePart type="family">De Marco</namePart><affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">D. J.</namePart><namePart type="family">Frew</namePart><affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">A.</namePart><namePart type="family">Acker</namePart><affiliation>Observatoire de Strasbourg, 11 Rue de l’Université, 67000 Strasbourg, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">A. V.</namePart><namePart type="family">Kovacevic</namePart><affiliation>Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">R. G.</namePart><namePart type="family">Sharp</namePart><affiliation>Australian Astronomical Observatory, PO Box 296, Epping, NSW 1710, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article" authority="ISTEX" authorityURI="https://content-type.data.istex.fr" valueURI="https://content-type.data.istex.fr/ark:/67375/XTP-6N5SZHKN-D">article</genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><place><placeTerm type="text">Oxford, UK</placeTerm></place><dateIssued encoding="w3cdtf">2011-07-11</dateIssued><edition>Accepted 2011 January 11. Received 2011 January 11; in original form 2010 May 14</edition><copyrightDate encoding="w3cdtf">2011</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><extent unit="figures">5</extent><extent unit="tables">4</extent><extent unit="formulas">360</extent><extent unit="references">80</extent><extent unit="linksCrossRef">186</extent></physicalDescription><abstract lang="en">We present the spectra of 32 previously unpublished confirmed and candidate Wolf–Rayet ([WR]) and weak emission‐line (WELS) central stars of planetary nebulae (CSPNe). 18 stars have been discovered in the Macquarie/AAO/Strasbourg Hα (MASH) PN survey sample, and we have also uncovered 14 confirmed and candidate [WR]s and WELS among the CSPNe of previously known PNe. Spectral classifications have been undertaken using both Acker & Neiner and Crowther, De Marco & Barlow schemes. 22 members in this sample are identified as probable [WR]s; the remaining 10 appear to be WELS. Observations undertaken as part of the MASH spectroscopic survey have now increased the number of known [WR]s by ∼30 per cent. This will permit a better analysis of [WR] subclass distribution, metallicity effects and evolutionary sequences in these uncommon objects.</abstract><subject lang="en"><genre>keywords</genre><topic>stars: Wolf–Rayet</topic><topic>planetary nebulae: general</topic></subject><relatedItem type="host"><titleInfo><title>Monthly Notices of the Royal Astronomical Society</title></titleInfo><genre type="journal" authority="ISTEX" authorityURI="https://publication-type.data.istex.fr" valueURI="https://publication-type.data.istex.fr/ark:/67375/JMC-0GLKJH51-B">journal</genre><identifier type="ISSN">0035-8711</identifier><identifier type="eISSN">1365-2966</identifier><identifier type="DOI">10.1111/(ISSN)1365-2966</identifier><identifier type="PublisherID">MNR</identifier><part><date>2011</date><detail type="volume"><caption>vol.</caption><number>414</number></detail><detail type="issue"><caption>no.</caption><number>4</number></detail><extent unit="pages"><start>2812</start><end>2827</end><total>16</total></extent></part></relatedItem><identifier type="istex">59ED1B043080A167DCFF204224F5386E084F65D4</identifier><identifier type="ark">ark:/67375/WNG-MH7XJLLM-G</identifier><identifier type="DOI">10.1111/j.1365-2966.2011.18337.x</identifier><identifier type="ArticleID">MNR18337</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS</accessCondition><recordInfo><recordContentSource authority="ISTEX" authorityURI="https://loaded-corpus.data.istex.fr" valueURI="https://loaded-corpus.data.istex.fr/ark:/67375/XBH-L0C46X92-X">wiley</recordContentSource><recordOrigin>Blackwell Publishing Ltd</recordOrigin></recordInfo></mods><json:item><extension>json</extension><original>false</original><mimetype>application/json</mimetype><uri>https://api.istex.fr/document/59ED1B043080A167DCFF204224F5386E084F65D4/metadata/json</uri></json:item></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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