AC3 - Accretion discs and jets |
|
Speaker |
Mondal, Tushar |
|
Coauthors |
Mondal, Tushar; Mukhopadhyay, Banibrata |
| Talk Title |
Magnetised Disc-Outflow Symbiotic Model Around Black Holes |
|
Abstract |
The most self-consistent approach, in order to understand vertical transport of matter through the magnetic effects, which in turn leads to the radial in-fall of the rest of the matter, is considering the flow to be moving in the vertical direction from the disc plane. Such an attempt, in the absence of magnetic effects, was made earlier by Bhattacharya, Ghosh & Mukhopadhyay (2010) in the model framework of coupled disc-outflow systems. In such a framework, we can see the energetics of the disc outflow strongly depend on the mass, accretion rate, and spin of the black holes. Here, we explore the coupled 2.5-dimensional disc-outflow systems in the presence of large-scale magnetic field enabling angular momentum transport, when the magnetic field plays an indispensable role in order to generate vertical flux in the three-dimensional flows. We attempt to reproduce the observed luminosities (L) of two extreme cases - the under-fed AGNs and quasars (e.g. Sgr A*) with L ~ 10^33 ergs/sec to ultra-luminous X-ray sources with L ~ 10^40 ergs/sec, at different combinations of mass accretion rate, ratio of specific heats, magnetic field geometry and Kerr parameter. |
|
Talk view |
|
|
|
|