Presentation details
» X-ray and H_alpha variability of Cyg X-1
Presentation duration: 25 minutes
Presenter: Petr Hadrava
Variability of Cyg X-1 observed in H-alpha line using Ondrejov 2-m telescope is compared with RXTE observations. It is shown that the line-profile can be decomposed to P-Cyg profile of the supergiant and an emission peak radiated by circumstellar matter. The EW of the later component is responsible for the anticorrelation of the X-ray flux and the H-alpha emission.
Authors:- Petr Hadrava, Astronomical Institute, AS, Prague
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