Standing accretion shock waves around rotating black holes in presence of cooling

Details Standing accretion shock waves around rotating black holes in presence of cooling Standing accretion shock waves around rotating black holes in presence of cooling

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1053..365d&link_type=abstract

OBSERVATIONAL EVIDENCE FOR BLACK HOLES IN THE UNIVERSE: Proceedings of the 2nd Kolkata Conference on Observational Evidence for

Computer Science

Sound

Infall, Accretion, And Accretion Disks, Galactic Nuclei, Circumnuclear Matter, And Bulges, Macrosonic Propagation, Finite Amplitude Sound, Shock Waves

Scientific paper

We investigate the properties of the shock waves for a rotating accretion flow around a spinning black hole (BH) in presence of synchrotron cooling. We present all possible accretion solutions. We show that global accretion shock solutions exist for a wide range of flow parameters. We separate the region of the parameter space for steady and oscillating shocks which gradually shrinks as cooling is increased. We also find that shock fronts move closer to the BH for enhanced cooling efficiency which could be the source of high frequency quasi-periodic oscillations around the rotating black holes at higher accretion rate.

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