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Article: Five WC9 stars discovered in the AAO/UKST Hα survey

TitleFive WC9 stars discovered in the AAO/UKST Hα survey
Authors
KeywordsStars: Wolf-Rayet
Circumstellar matter
Galaxy: stellar content
Surveys
Issue Date2005
Citation
Monthly Notices of the Royal Astronomical Society, 2005, v. 363, n. 3, p. 857-866 How to Cite?
AbstractWe report the discovery of five massive Wolf-Rayet (WR) stars resulting from a programme of follow-up spectroscopy of candidate emission-line stars in the Anglo-Australian Observatory United Kingdom Schmidt Telescope (AAO/UKST) Southern Galactic Plane Hα survey. The 6195-6775 Å spectra of the stars are presented and discussed. A WC9 class is assigned to all five stars through comparison of their spectra with those of known late-type WC stars, bringing the known total number of Galactic WC9 stars to 44. Whilst three of the five WC9 stars exhibit near-infrared (NIR) excesses characteristic of hot dust emission (as seen in the great majority of known WC9 stars), we find that two of the stars show no discernible evidence of such excesses. This increases the number of known WC9 stars without NIR excesses to seven. Reddenings and distances for all five stars are estimated. © 2005 RAS.
Persistent Identifierhttp://hdl.handle.net/10722/208844
ISSN
2015 Impact Factor: 4.952
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DC FieldValueLanguage
dc.contributor.authorHopewell, Ella C.-
dc.contributor.authorBarlow, Michael J.-
dc.contributor.authorDrew, Janet E.-
dc.contributor.authorUnruh, Yvonne C.-
dc.contributor.authorParker, Quentin A.-
dc.contributor.authorPierce, Michael J.-
dc.contributor.authorCrowther, Paul A.-
dc.contributor.authorKnigge, Christian-
dc.contributor.authorPhillipps, Steven-
dc.contributor.authorZijlstra, Albert A.-
dc.date.accessioned2015-03-23T02:01:54Z-
dc.date.available2015-03-23T02:01:54Z-
dc.date.issued2005-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2005, v. 363, n. 3, p. 857-866-
dc.identifier.issn0035-8711-
dc.identifier.urihttp://hdl.handle.net/10722/208844-
dc.description.abstractWe report the discovery of five massive Wolf-Rayet (WR) stars resulting from a programme of follow-up spectroscopy of candidate emission-line stars in the Anglo-Australian Observatory United Kingdom Schmidt Telescope (AAO/UKST) Southern Galactic Plane Hα survey. The 6195-6775 Å spectra of the stars are presented and discussed. A WC9 class is assigned to all five stars through comparison of their spectra with those of known late-type WC stars, bringing the known total number of Galactic WC9 stars to 44. Whilst three of the five WC9 stars exhibit near-infrared (NIR) excesses characteristic of hot dust emission (as seen in the great majority of known WC9 stars), we find that two of the stars show no discernible evidence of such excesses. This increases the number of known WC9 stars without NIR excesses to seven. Reddenings and distances for all five stars are estimated. © 2005 RAS.-
dc.languageeng-
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society-
dc.subjectStars: Wolf-Rayet-
dc.subjectCircumstellar matter-
dc.subjectGalaxy: stellar content-
dc.subjectSurveys-
dc.titleFive WC9 stars discovered in the AAO/UKST Hα survey-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1365-2966.2005.09487.x-
dc.identifier.scopuseid_2-s2.0-27344453684-
dc.identifier.volume363-
dc.identifier.issue3-
dc.identifier.spage857-
dc.identifier.epage866-

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