Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-02-24
Mon.Not.Roy.Astron.Soc. 349 (2004) 649
Astronomy and Astrophysics
Astrophysics
30 pages with 13 figures (MNRAS, in press)
Scientific paper
10.1111/j.1365-2966.2004.07536.x
Accretion flows having low angular momentum and low viscosity can have standing shock waves. These shocks arise due to the presence of multiple sonic points in the flow. We study the region of the parameter space in which multiple sonic points occur in viscous flows in the absence of cooling. We also separate the parameter space in regions allowing steady shocks and oscillating shocks. We quantify the nature of two critical viscosities which separate the flow topologies. A post-shock region being hotter, it emits harder X-rays and oscillating shocks cause oscillating X-ray intensities giving rise to quasi-periodic oscillations. We show that with the increase in viscosity parameter, the shock always moves closer to the black hole. This implies an enhancement of the quasi-periodic oscillation frequency as viscosity is increased
Chakrabarti Sandip K.
Das Santabrata
No associations
LandOfFree
Properties of Accretion Shock Waves in Viscous Flows Around Black Holes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Properties of Accretion Shock Waves in Viscous Flows Around Black Holes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Properties of Accretion Shock Waves in Viscous Flows Around Black Holes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-351865