AustralieFrV1, Main, Exploration, bibRecord, 006375

Newly discovered Wolf–Rayet and weak emission‐line central stars of planetary nebulae

Identifieur interne : 006375 ( Main/Exploration ); précédent : 006374; suivant : 006376

Newly discovered Wolf–Rayet and weak emission‐line central stars of planetary nebulae

Auteurs : K. Depew [Australie] ; Q. A. Parker [Australie] ; B. Miszalski ; O. De Marco [Australie] ; D. J. Frew [Australie] ; A. Acker [France] ; A. V. Kovacevic [Australie] ; R. G. Sharp [Australie]

Source :

Monthly Notices of the Royal Astronomical Society [ 0035-8711 ] ; 2011-07-11.

RBID : ISTEX:59ED1B043080A167DCFF204224F5386E084F65D4

Descripteurs français

Pascal (Inist)
- Classification spectrale, Etoile centrale, Etoile raie émission, Etoile type Wolf Rayet, Métallicité, Nébuleuse planétaire, Raie émission.

English descriptors

KwdEn :
- Abell, Acker, Acker neiner, Astron, August, Barlow, Central star, Central star exhibits, Central stars, Chemical abundances, Crowther, Cspn, Cspne, Doublet, Emission line, Emission line stars, Emission lines, February, Frew, Frew parker, Fwhm, Galactic, Marco, Mash, Mash sample, Mash survey, Metallicity, Miszalski, Mnras, Monthly notices, Nebula, Nebular, Nebular component, Nebular lines, Neiner, Observation details, Planetary nebulae, Prominent lines, Spectral classification, Spectral subtype, Stellar, Subclass, Tylenda, Weak cspne, Wels, Wels wels, Wolf-Rayet stars.
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We present the spectra of 32 previously unpublished confirmed and candidate Wolf–Rayet ([WR]) and weak emission‐line (WELS) central stars of planetary nebulae (CSPNe). 18 stars have been discovered in the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:

https://api.istex.fr/document/59ED1B043080A167DCFF204224F5386E084F65D4/fulltext/pdf

DOI: 10.1111/j.1365-2966.2011.18337.x

Affiliations:

Le document en format XML

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<front><div type="abstract" xml: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.</div>
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Serveur d'exploration sur les relations entre la France et l'Australie

Newly discovered Wolf–Rayet and weak emission‐line central stars of planetary nebulae

Newly discovered Wolf–Rayet and weak emission‐line central stars of planetary nebulae

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

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Pour mettre un lien sur cette page dans le réseau Wicri

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