SIMBAD references

1996A&A...311L..25S - Astronomy and Astrophysics, volume 311, L25-28 (1996/7-3)

Cyg X-3: evidence for a black hole.


Abstract (from CDS):

We have observed time-variations in the profiles of several infrared emission lines from the X-ray binary, Cyg X-3, which is believed to consist of a Wolf-Rayet star and a compact object. We conclude that the variations are due to the orbital motion of the Wolf-Rayet star and derive a mass function for Cyg X-3 of 2.3M. Assuming reasonable values for the mass of the Wolf-Rayet star and the inclination of the system, we obtain a range of masses 7-40M for the compact object, with a most likely value of 17M. This strongly suggests that the compact component of Cyg X-3 is a black hole.

Abstract Copyright:

Journal keyword(s): binaries: close - stars: individual: Cyg X-3 - stars: Wolf-Rayet - infrared: stars

Simbad objects: 6

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