Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003arep...47..621k&link_type=abstract
Astronomy Reports, vol. 47, Issue 8, p.621-636
Astronomy and Astrophysics
Astronomy
4
Scientific paper
We have analyzed optical and infrared light curves of GU Mus obtained during the system's quiescent state and carried out computations for “hot-line” and “hot-spot” models. The hot-line model describes the optical variability of GU Mus better than the hot-spot model. Season-to-season variations of the shape, amplitude, and mean levels of the optical and infrared light curves of GU Mus are due to changing parameters of the hot line and, to a lesser degree, of the accretion disk. Taking into account the contribution of the variability of the disk + hot line system to the variability of the system as a whole, we are able to reliably estimate the orbital inclination, , and the mass of the black hole, M X =(6.7 7.6)M &sun;.
Bisikalo Dimitry V.
Boyarchuk Alexander A.
Cherepashchuk Anatol M.
Khruzina T. S.
Kuznetsov Oleg A.
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