Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/152380
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- Title
- Newly discovered Wolf-Rayet and weak emission-line central stars of planetary nebulae
- Related
- Monthly notices of the Royal Astronomical Society, Vol. 414, No. 4, (2011), p.2812-2827
- DOI
- 10.1111/j.1365-2966.2011.18337.x
- Publisher
- Wiley-Blackwell
- Date
- 2011
- Author/Creator
- DePew, K
- Author/Creator
- Parker, Q. A
- Author/Creator
- Miszalski, B
- Author/Creator
- De Marco, O
- Author/Creator
- Frew, D. J
- Author/Creator
- Acker, A
- Author/Creator
- Kovacevic, A. V
- Author/Creator
- Sharp, R. G
- Description
- We present the spectra of 32 previously unpublished confirmed and candidate Wolf-Rayet ([WR]) and weak emission-line (WELS) central stars of planetary nebulae (CSPNe). 18 stars have been discovered in the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 ∼30per cent. This will permit a better analysis of [WR] subclass distribution, metallicity effects and evolutionary sequences in these uncommon objects.
- Description
- 16 page(s)
- Subject Keyword
- Planetary nebulae: general
- Subject Keyword
- Stars: Wolf-Rayet
- Resource Type
- journal article
- Organisation
- Macquarie University. Dept. of Physics and Astronomy
- Identifier
- http://hdl.handle.net/1959.14/152380
- Identifier
- ISSN:0035-8711
- Identifier
- mq_res-ext-2-s2.0-79959841751
- Language
- eng
- Reviewed
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