The mass of the black hole in GS 2000+25 (=QZ Vul).

Bibcode
1996MNRAS.281L...1B
Beekman, G.; Shahbaz, T.; Naylor, T.; Charles, P. A.
Bibliographical reference

Monthly Notices of the Royal Astronomical Society, Vol. Vol. 281, No. 1, p. L1 - L4

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7
1996
Journal
Monthly Notices of the Royal Astronomical Society
Number of authors
4
IAC number of authors
0
Citations
26
Refereed citations
20
Description
The authors report the first infrared light curve of GS 2000+25. By modelling the brightness variations as ellipsoidal modulations of the secondary star, the authors find the mass of the compact object to lie between 4.8 and 14.4 Msun (90 per cent confidence) for secondary masses ≤0.7 Msun; this result is independent of the mass ratio, q. The upper inclination limit of the system is more dependent on q, although the lower inclination limit is almost independent of it, and for q = 20 the authors find the inclination of the system to lie between 43° and 69°.
Type
Refereed
Black holes
Orbital elements

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