Time variability of low angular momentum accretion flows around black hole [HEAP]

http://arxiv.org/abs/1912.01418


We present the relativistic 2D and 3D GRMHD simulation of axisymmetric, inviscid, hydrodynamic accretion flows in a fixed Kerr black hole gravitational field. The flow is having low angular momentum with respect to Keplerian one. A relativistic fluid where its bulk velocity is comparable to the speed of light, flowing in the accretion disk very close to the horizon should be described by adiabtic index: 4=3 < g < 5=3 .The time dependent evolution of shock position and respective effect on mass accretion rate and oscillation frequency with varying adiabatic index has been studied. Here we present some of the results for adiabatic index = 1.4 in a 2D and 3D model.

Read this paper on arXiv…

I. Palit, A. Janiuk and P. Sukova
Wed, 4 Dec 19
35/58

Comments: 9 pages, 4 figures, contribution to the Proceedings of the High Energy Phenomena in Relativistic Outflows VII – HEPRO VII, Barcelona, Spain (submitted in PoS (Proceedings of Science) )