Effect of magnetic flux advection on the dynamics of shock in accretion flow around a rotating black hole

作     者：Biplob Sarkar Anjali Rao Biplob Sarkar;Anjali Rao

作者机构：Faculty of Science&TechnologyThe ICFAI University TripuraAgartala799210India Department of Physics and AstronomyUniversity of Southampton.Highfield.Southampton SO 171BJUK Department of Applied SciencesTezpur UniversityNapaam-784028.TezpurAssamIndia 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2020年第20卷第3期

页      面：150-161页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 070401[理学-天体物理] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 

基　　金：a Commonwealth Rutherford Fellowship 

主　　题：accretion,accretion discs-magnetohydrodynamics-stars black holes-shock waves-ISM jets and outflows 

摘      要：We investigate the dynamical behavior of a magnetized,dissipative accretion flow around a rapidly rotating black *** solve the magnetohydrodynamic equations and calculate the transonic accretion solutions which may contain discontinuous shock *** investigate the effect ofζ-parameter(parametrizing the radial variation of the toroidal magnetic flux advection rate)on the dynamical behavior of *** 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 *** compare this with the observed radio jet kinetic power reported in the literature,whenever *** find close agreement between the estimated values from our model and those reported in the literature.