The stellar seismology of the hot white dwarf star PG1159-035
نویسندگان
چکیده
منابع مشابه
γ)O from White Dwarf Seismology
For many years, astronomers have promised that the study of pulsating white dwarfs would ultimately lead to useful information about the physics of matter under extreme conditions of temperature and pressure. We can now make good on that promise. Using observational data from the Whole Earth Telescope and a new analysis method employing a genetic algorithm, we empirically determine the central ...
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K. Werner,1 T. Rauch,1,2 R. Napiwotzki,3 N. Christlieb,4 D. Reimers,4 and C. A. Karl2 1Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, 72076 Tübingen, Germany 2Dr. Remeis-Sternwarte, Sternwartstr. 7, 96049 Bamberg, Germany 3Department of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK 4Hamburger Sternwarte, Universität Hamburg, Goje...
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Context. PG 1159-035, a pre-white dwarf with Teff ≃ 140 000 K, is the prototype of both two classes: the PG 1159 spectroscopic class and the DOV pulsating class. Previous studies of PG 1159-035 photometric data obtained with the Whole Earth Telescope (WET) showed a rich frequency spectrum allowing the identification of 122 pulsation modes. Analyzing the periods of pulsation, it is possible to m...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1988
ISSN: 0074-1809
DOI: 10.1017/s0074180900158310