Tilted Accretion Flows around Rotating Black Holes

Details Tilted Accretion Flows around Rotating Black Holes Tilted Accretion Flows around Rotating Black Holes

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.0507f&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #05.07; Bulletin of the American Astronomical Society, Vol. 33, p.1309

Astronomy and Astrophysics

Astronomy

Scientific paper

We present preliminary results of ongoing numerical simulations of tilted accretion flows around rapidly rotating black holes. In a viscous disk, such a configuration is susceptible to the Bardeen-Petterson effect, which causes the flow to divide into two distinct regions - an inner aligned accretion disk and an outer tilted accretion disk. We propose that hydrodynamic effects at the interface between these two regions could potentially generate moderate frequency quasi-periodic oscillations (QPOs) such as have been observed in the X-ray spectra of low-mass X-ray binaries (LMXBs). Here we consider inviscid flows, which demonstrate the effects of relativistic frame-dragging near the black hole.

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