Search for relativistic companions in 'non-X-ray' binary systems

Details Search for relativistic companions in 'non-X-ray' binary systems Search for relativistic companions in 'non-X-ray' binary systems

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ap%26ss.102...97c&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 102, no. 1, July 1984, p. 97-122.

Astronomy and Astrophysics

Astronomy

23

Black Holes (Astronomy), Companion Stars, Hot Stars, Radial Velocity, Relativistic Effects, Wolf-Rayet Stars, Accretion Disks, B Stars, Light Curve, O Stars, Stellar Envelopes, Supergiant Stars, Variable Stars

Scientific paper

Guseinov and Zeldovich (1966) have made the suggestion to look for relativistic objects in close binary systems. Hundreds of strong point X-ray sources have already been discovered. From up-to-date ideas on the evolution of massive close binary systems it can be inferred that the number of relativistic objects which are powerful X-ray sources is about 1 percent only of the total number of relativistic objects which accompany OB stars. A total of 99 percent of neutron stars and black holes in massive close binary systems must, therefore, exist in a 'nonobservable' form. A study of the OB stars within the Galaxy with respect to their binary structure is considered as a means for locating black holes. The present investigation is concerned with the formulation of criteria which the companions orbiting OB stars would have to satisfy to qualify as relativistic objects rather than normal stars. Attention is also given to WR stars with probable relativistic companions.

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