Other
Scientific paper
Mar 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pasp...97..274v&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 97, March 1985, p. 274-279.
Other
46
Companion Stars, Emission Spectra, Periodic Variations, Radial Velocity, Wolf-Rayet Stars, B Stars, Neutron Stars, O Stars, Stellar Mass Ejection, Stellar Oscillations
Scientific paper
It is shown that nearly all the published periods in the emission-line profiles for the so-called 'WR + compact-companion' systems can be easily related to each other. it is suggested that the emission-line variability is due to single-star nonradial pulsations instead of spiralling-in neutron star scenarios. This behavior may be widespread at least among members of the WN class. The inference that nearly all the observed periods seem to belong to the same family could be a clue for understanding the relatively similar mass loss rates of the WR stars. Nevertheless a definite observational evidence for nonradial pulsations in WR stars will require new high-quality observations planned in such a way that the data allow a search for periods less than one day and a search for multiple periodicities.
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