Abstract
The central stars of two of the new planetary nebulae found during scans of the AAO/UKST Hα Survey of the Milky Way have been found to exhibit Wolf-Rayet (WR) emission features. One (PMR 1) is an early-type star of class either [WO4] or [WC4]. The other (PMR 2) is a late [WC] star which, depending on the classification scheme used, is either intermediate in class between [WC9] and [WC10] or the sole member of the [WC10] class. Both stars exhibit unusual spectral features which may be attributed to enhanced nitrogen in their atmospheres and could be indicative of unusual stellar evolution.
Original language | English |
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Pages (from-to) | 877-884 |
Number of pages | 8 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 322 |
Issue number | 4 |
DOIs | |
Publication status | Published - 21 Apr 2001 |
Keywords
- Planetary nebulae: general
- Stars: Wolf-Rayet