More Wolf-Rayet central stars of planetary nebulae identified on the AAO/UKST Hα survey

Details More Wolf-Rayet central stars of planetary nebulae identified on the AAO/UKST Hα survey More Wolf-Rayet central stars of planetary nebulae identified on the AAO/UKST Hα survey

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003mnras.341..961p&link_type=abstract

Monthly Notice of the Royal Astronomical Society, Volume 341, Issue 3, pp. 961-972.

Astronomy and Astrophysics

Astronomy

18

Stars: Chemically Peculiar, Stars: Evolution, Stars: Wolf-Rayet, Planetary Nebulae: General

Scientific paper

The central stars of another four of the new planetary nebulae found during scans of the Anglo-Australian Observatory/UK Schmidt Telescope Hα survey of the Milky Way have been found to exhibit Wolf-Rayet emission features. One (PM4) is a [WC8] star; the other three are early-type stars of class either [WC4] or [WO4]. One of the [WC4] stars (PM3) exhibits unusual spectral features such as those found for PMR1 by Morgan, Parker & Russeil, which may be attributed to enhanced nitrogen in its atmosphere and could be indicative of unusual stellar evolution. The nebula around PM3 has a bright, dense, high-excitation core. Supplementary photometric data are consistent with the objects being planetary nebulae.

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