HD 192163, a possible Wolf-Rayet binary with a relativistic component

Details HD 192163, a possible Wolf-Rayet binary with a relativistic component HD 192163, a possible Wolf-Rayet binary with a relativistic component

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981sval....7..265a&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 7, Aug. 1981, p. 482-487.) Soviet Astronomy Letters, vol. 7, July-Aug. 1981, p. 265-268

Astronomy and Astrophysics

Astronomy

15

Binary Stars, Neutron Stars, Periodic Variations, Relativistic Velocity, Stellar Mass Accretion, Stellar Spectrophotometry, Wolf-Rayet Stars, Emission Spectra, Line Spectra, Nebulae, Radial Velocity, Spectrum Analysis, Stellar Evolution, X Ray Spectra

Scientific paper

The 4.5-day spectrum variability suspected by Koenigsberger et al (1980) for the case of the WN 6 star HD 192163, which is associated with the ring nebula NGC 6888, has been confirmed by spectroscopic observations. The mass of the secondary, which is probably a neutron star, is suggested to be approximately one solar mass for the case of a model close binary in which the primary star has a mass function f(WR) = 0.02-0.003 solar masses. HD 192163 may be seen as a close binary system in the post-X-ray stage of evolution.

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