Description of accretion induced outflows from ultra-luminous sources to under-luminous AGNs

Ghosh, Shubhrangshu and Mukhopadhyay, Banibrata and Krishan, Vinod and Khan, Manoranjan (2010) Description of accretion induced outflows from ultra-luminous sources to under-luminous AGNs. In: New Astronomy, 15 (1). pp. 83-88.

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Abstract

We study the energetics of the accretion-induced outflow and then plausible jet around black holes/compact objects using a newly developed disc-outflow coupled model. Inter-connecting dynamics of outflow and accretion essentially upholds the conservation laws. The energetics depend strongly on the viscosity parameter α and the cooling factor f which exhibit several interesting features. The bolometric luminosities of ultra-luminous X-ray binaries (e.g. SS433) and family of highly luminous AGNs and quasars can be reproduced by the model under the super-Eddington accretion flows. Under appropriate conditions, low-luminous AGNs (e.g. Sagittarius A*) also fit reasonably well with the luminosity corresponding to a sub-Eddington accretion flow with f→1.

Item Type:	Journal Article
Publication:	New Astronomy
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Accretion:accretion disc;Black hole physics;X-rays:binaries;Galaxies:jets;Galaxies:nuclei.
Department/Centre:	Division of Physical & Mathematical Sciences > Astronomy and Astrophysics Programme Division of Physical & Mathematical Sciences > Physics
Date Deposited:	29 Oct 2009 06:16
Last Modified:	19 Sep 2010 05:51
URI:	http://eprints.iisc.ac.in/id/eprint/24809

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