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Fitting of Light Curves for Microquasar V4641 Sgr
Shinji Nishiyama,Jun Fukue,Akira Arai,Kenya Watarai 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.4
We report the .tting results of theoretical light curves for microquasar V4641 Sgr. In this study, we apply a new accretion disk model that is presented by Fukue to observed R-band light curves of V4641 Sgr. The new model takes into account the geometrical thickness of the disk, so it may be able to describe the two deep minima of the observed light curves. The best-.t parameters show that the system has a relatively high inclination angle, i = 75±, and that the mass accretion rate is around the Eddington rate. We propose the importance of the geometry of the accretion disk to explain the deep minima observed in this object.