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[Wolf-Rayet]-type central stars of planetary nebulae

Published online by Cambridge University Press:  07 August 2017

S.K. Górny ,
A. Acker ,
G. Stasińska ,
B. Stenholm  and
R. Tylenda
S.K. Górny
Affiliation:
1 Copernicus Astronomical Center, Rabiańska 8, 87-100 Toruń, Poland
A. Acker
Affiliation:
2 Observatoire de Strasbourg, 11, rue de l'Université, F-67000 Strasbourg, France
G. Stasińska
Affiliation:
3 Observatoire de Meudon, DAEC, F-92195 Meudon Principal Cedex, France
B. Stenholm
Affiliation:
4 Lund Observatory, Box 43, S-221 00 Lund, Sweden
R. Tylenda
Affiliation:
1 Copernicus Astronomical Center, Rabiańska 8, 87-100 Toruń, Poland

Abstract

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A number of central stars of planetary nebulae (CSPN) show emission lines in their spectra. Among them about 50 have been classified as [Wolf-Rayet] type (Tylenda et al. 1993). In spite of the fact that these stars probably have masses below 1 M⊙ and luminosities < 104 L⊙ their spectra show emission bands very similar to those of much more massive and luminous Population I Wolf-Rayet stars. We present some preliminary results of an extensive investigation of the [WR]-type CSPN based on the spectroscopic survey described in the Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker et al. 1992).

Keywords

stars: [Wolf-Rayet]planetary nebulae: central stars
Type
Session I - Basic parameters, properties of single Wolf-Ray et stars
Information
Symposium - International Astronomical Union , Volume 163: Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution , 1995 , pp. 85 - 86
Copyright
Copyright © Kluwer 1995 

References

Acker, A., Ochsenbein, F., Stenholm, B., Tylenda, R., Marcout, J., Schohn, C. 1992, Strasbourg - ESO Catalogue of Galactic Planetary Nebulae (Garching: ESO)Google Scholar
Tylenda, R., Acker, A., Stenholm, B. 1993, A&A Suppl. 102, 595 Google Scholar
Tylenda, R., Górny, S.K. 1993, Acta Astronomica 43, 389 Google Scholar