Other
Scientific paper
Oct 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1053..209p&link_type=abstract
OBSERVATIONAL EVIDENCE FOR BLACK HOLES IN THE UNIVERSE: Proceedings of the 2nd Kolkata Conference on Observational Evidence for
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1
Quasars, Galactic Nuclei, Circumnuclear Matter, And Bulges, X-Ray Binaries, Infall, Accretion, And Accretion Disks
Scientific paper
The galactic nano-quasar GRS 1915+105 is an enigmatic stellar mass black hole candidate which changes the spectral class quite erratically. It exhibits at least thirteen classes of distinct light curves. Some of these show quasi-periodic oscillations (QPOs) while others do not. Since the nature of the accretion flow dictates the count rates, the spectral information, whether the QPOs will form or not, light curves from each class etc. the observations can be modeled with proper accretion disk solution. Since the time scale of variation could be very small, we study the power density spectrum and energy spectrum of each of these classes dynamically so that we can identify the dynamics of the flow in each spell of the observation and combine them to have a global understanding of this object.
Chakrabarti Sandip K.
Nandi Anuj
Pal Partha Sarathi
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