[WC]-type CSPN : clumping and wind-driving
- Many Central Stars of Planetary Nebulae are very similar to massive Wolf-Rayet stars of the carbon sequence with respect to their spectra, chemical composition and wind properties. Therefore their study opens an additional way towards the understanding of the Wolf-Rayet phenomenon. While the study of Line Profile Variation will be difficult, espescially for the very compact early types, the comparision with other hydrogen-deficient Central Stars illuminates the driving mechanism of their winds. We speculate that at least two ingredients are needed. The ionization of their atmpospheres has to be stratified to enable multi-scattering processes and the amount of carbon and oxygen has to be high (more than a few percent by mass).
| Author details: | Lars Koesterke, Wolf-Rainer HamannORCiDGND |
|---|---|
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2002 |
| Publication year: | 2002 |
| Release date: | 2017/03/24 |
| Source: | Interacting Winds from Massive Stars : proceedings of a Workshop held at Les iles-de-la-Madeleine, Quebec, Canada, 10 - 14 July 2000 / Hrsg.: Anthony F. J. Moffar und Nicole St.-Louis. - San Francisco, Calif. : Astronomical society of the Pacific, 2002. - (Astronomical society of the pacific conference series ; 260). - S. 259 |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Institution name at the time of the publication: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik |
