2020RAA....20...40S


Query : 2020RAA....20...40S

2020RAA....20...40S - Research in Astron. and astroph., 20, 40-40 (2020/March-0)

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

SARKAR B. and RAO A.

Abstract (from CDS):

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 of ζ-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 of ζ and accretion rate (${dot}m$). 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.

Abstract Copyright: © 2020 National Astronomical Observatories

Journal keyword(s): accretion, accretion discs - magnetohydrodynamics - stars: black holes - shock waves - ISM: jets and outflows

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 X LMC X-3 HXB 05 38 56.6323605504 -64 05 03.317937504   17 17.2     B2.5Ve 722 0
2 X LMC X-1 HXB 05 39 38.8284304464 -69 44 35.531553624   14.8 14.5 14.924   O8(f)p 700 0
3 1A 0620-00 HXB 06 22 44.5423857312 -00 20 44.290460544           K3V-K7V 1144 0
4 V* KV UMa HXB 11 18 10.7930420496 +48 02 12.314730120           K5V-M1V 865 0
5 V* V381 Nor HXB 15 50 58.6637920704 -56 28 35.258385000           K3III 1254 0
6 V* V1033 Sco HXB 16 54 00.1423963019 -39 50 44.761701340       16.14   F3-6IV 1980 0
7 NAME XTE J17464-3213 LXB 17 46 15.59637 -32 14 00.8600           ~ 805 0
8 Granat 1915+105 HXB 19 15 11.55576 +10 56 44.9052           ~ 2810 0
9 HD 226868 HXB 19 58 21.6757355952 +35 12 05.784512688 9.38 9.72 8.91 8.42   O9.7Iabpvar 4590 0

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