The central star of the planetary nebula PB 8: a Wolf-Rayet-type wind of an unusual WN/WC chemical composition

  title={The central star of the planetary nebula PB 8: a Wolf-Rayet-type wind of an unusual WN/WC chemical composition},
  author={Helge Todt and Miriam Pe{\~n}a and W. R. Hamann and Gfz Potsdam and Institute for Particle Physics and Astronomy and Potsdam and H Germany and Instituto de Astronom'ia and Universidad Nacional Autnoma de M'exico and M'exico D.F. M'exico and A. G. Polatidis Onsala Space Observatory and College Hill and Northern Ireland},
  journal={Astronomy and Astrophysics},
A considerable fraction of the central stars of planetary nebulae (CSPNe) are hydrogen-deficient. As a rule, these CSPNe exhibit a chemical composition of helium, carbon, and oxygen with the majority showing Wolf-Rayet-like emission line spectra. These stars are classified as CSPNe of a spectral type [WC]. We perform a spectral analysis of CSPN PB 8 with the Potsdam Wolf-Rayet (PoWR) models for expanding atmospheres. The source PB 8 displays wind-broadened emission lines from strong mass loss… 

Abell 48 – a rare WN-type central star of a planetary nebula

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  • Ashkbiz Danehkar
  • Physics
    Publications of the Astronomical Society of Australia
  • 2018
Abstract The planetary nebula PB 8 around a [WN/WC]-hybrid central star is one of planetary nebulae with moderate abundance discrepancy factors (ADFs ~ 2–3), which could be an indication of a tiny

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  • K. Werner
  • Physics
    Proceedings of the International Astronomical Union
  • 2011
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