Wolf-Rayet star parameters from spectral analyses
- The Potsdam Non-LTE code for expanding atmospheres, which accounts for clumping and iron-line blanketing, has been used to establish a grid of model atmospheres for WC stars. A parameter degeneracy is discovered for early-type WC models which do not depend on the "stellar temperature". 15 galactic WC4-7 stars are analyzed, showing a very uniform carbon abundance (He:C=55:40) with only few exceptions.
| Author details: | Wolf-Rainer HamannORCiDGND, Götz Gräfener, Lars Koesterke |
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| ISBN: | 1-58381-133-8 |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2003 |
| Publication year: | 2003 |
| Release date: | 2017/03/24 |
| Source: | A massive star odyssey : from main sequence to supernova ; proceedings of the International Astronomical Union held in Costa Tequise / Hrsg.: Karl A. van der Hucht; Artemio Herrero; Cesar Esteban. - San Francisco : Astronomical Society of the Pacific, 2003. - ISBN: 1-58381-133-8. - S. 198 |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Institution name at the time of the publication: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik |
