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

  • S.K. Górny (a1), A. Acker (a2), G. Stasińska (a3), B. Stenholm (a4) and R. Tylenda (a1)...

Abstract

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).

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Copyright

References

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

Keywords

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

  • S.K. Górny (a1), A. Acker (a2), G. Stasińska (a3), B. Stenholm (a4) and R. Tylenda (a1)...

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