2007/10/31 by P. A. Crowther, Paul A Crowther, Crowther, Paul A
Physics and Astronomy · #Astro and Planetary Science #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.0710.5774
11 pages, 5 figures, in proceedings "Hydrogen-Deficient Stars" (eds. K Werner & T Rauch), ASP Conf Series
arxiv created 2007/10/31 · openalex publication_date 2007/10/31 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We review the properties of carbon-sequence ([WC]) Wolf-Rayet central stars of planetary nebulae (CSPNe). Differences between the subtype distribution of [WC] stars and their massive WC cousins are discussed. We conclude that [WO]-type differ from early-type [WC] stars as a result of weaker stellar winds due to high surface gravities, and that late- and early-type [WC] and [WO] stars generally span a similar range in abundances, X(He) ~ X(C) >> X(O), consistent with a late thermal pulse, and likely progenitors to PG1159 stars.