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Effect of magnetic flux advection on the dynamics of shock in accretion flow around a rotating black hole
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作者 Biplob Sarkar Anjali Rao 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2020年第3期150-161,共12页
We investigate the dynamical behavior of a magnetized,dissipative accretion flow around a rapidly rotating black hole.We solve the magnetohydrodynamic equations and calculate the transonic accretion solutions which ma... We investigate the dynamical behavior of a magnetized,dissipative accretion flow around a rapidly rotating black hole.We solve the magnetohydrodynamic equations and calculate the transonic accretion solutions which may contain discontinuous shock transitions.We investigate the effect ofζ-parameter(parametrizing the radial variation of the toroidal magnetic flux advection rate)on the dynamical behavior of shocks.For a rapidly rotating black hole and for fixed injection parameters at the outer edge,we show that stationary shocks are sustained in the global magnetized accretion solutions for a wide range ofζand accretion rate(˙m).To investigate the observational implications,we consider dissipative shocks and estimate the maximum accessible energy from the post-shock corona(PSC)for nine stellar mass black hole candidates.We compare this with the observed radio jet kinetic power reported in the literature,whenever available.We find close agreement between the estimated values from our model and those reported in the literature. 展开更多
关键词 accretion accretion discs-magnetohydrodynamics-stars black holes-shock waves-ISM jets and OUTFLOWS
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