Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975ap%26ss..32..215c&link_type=abstract
Astrophysics and Space Science, vol. 32, Jan. 1975, p. 215-229. NSF-NASA-supported research.
Astronomy and Astrophysics
Astrophysics
9
Astronomical Models, Hot Stars, Pulsars, Vibration Mode, White Dwarf Stars, X Ray Sources, Eigenvalues, Energy Transfer, Radial Distribution, Stellar Structure, Surface Layers, X Ray Stars
Scientific paper
The hypothesis that pulsating X-ray sources could be vibrating white dwarfs is investigated. The masses are calculated for several white-dwarf models having various modes of vibration which have the observed eigenfrequencies of the Centaurus X-3 and the Hercules X-1 sources. If the hypothesis is correct, Cen X-3 is vibrating radially in the fundamental mode or not higher than the first two overtones, and its mass is in the range 0.7-1.2 solar masses. The Her X-1 source would be vibrating in a quadrupole P mode, and would have a mass in the range 1.1-1.25 solar masses.
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