Effect of a QSO on the interstellar medium of its host galaxy

Shanbhag, Smita (1991) Effect of a QSO on the interstellar medium of its host galaxy. In: Astrophysical Journal, The, 367 (2). 462 -469.

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Abstract

We consider the hydrodynamic evolution of gas in the interstellar medium of the host galaxy of a quasar due to Compton heating by the QSO radiation. We show that a Lagrangean formulation of the problem is necessary. It is found that the "hydrodynamic time scale" becomes important compared to the Compton heating time scale. We also relax the "single fluid" approximation by considering the existence of clouds and taking into account the mass loss from stars. The results predict star burst activity, and thus we explain the blue colors of the active galaxies.

Item Type:	Journal Article
Publication:	Astrophysical Journal, The
Publisher:	University of Chicago Press
Additional Information:	Copyright of this article belongs to University of Chicago Press.
Keywords:	Active Galactic Nuclei;Interstellar Gas;Quasars;Compton Effect;Hydrogen;Molecular Clouds;Radio Galaxies;Star Formation;Starburst Galaxies.
Department/Centre:	Division of Physical & Mathematical Sciences > Astronomy and Astrophysics Programme
Date Deposited:	01 Dec 2010 04:22
Last Modified:	17 Oct 2018 09:58
URI:	http://eprints.iisc.ac.in/id/eprint/33751

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