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

Journal Article · Fri Feb 01 04:00:00 EST 1991 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/169642· OSTI ID:6000999

Shanbhag, S ^[1]

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1. Tata Institute of Fundamental Research, Bombay (India) Indian Institute of Science, Bangalore (India)

The hydrodynamic evolution of gas in the interstellar medium of the host galaxy of a quasar due to Compton heating by the QSO radiation is considered; a Lagrangian formulation of the problem is necessary. It is found that the hydrodynamic time scale becomes important compared to the Compton heating time scale. The single fluid approximation is relaxed by considering the existence of clouds, and taking into account the mass loss from stars. The results predict star burst activity, and thus the blue colors of the active galaxies are explained. 27 refs.

• OSTI ID: 6000999
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 367; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BASIC INTERACTIONS
COMPTON EFFECT
COSMIC GASES
COSMIC RADIO SOURCES
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELEMENTS
FLUID MECHANICS
FLUIDS
GALACTIC EVOLUTION
GALAXIES
GALAXY NUCLEI
GASES
HYDRODYNAMICS
HYDROGEN
INTERACTIONS
INTERSTELLAR SPACE
MECHANICS
MOLECULES
NONMETALS
QUASARS
RADIO GALAXIES
SCATTERING
SPACE
STAR EVOLUTION