Viscous time lags between starburst and AGN activity

Abstract

There is strong observational evidence indicating a time lag of order of some 100 Myr between the onset of starburst and AGN activity in galaxies. Dynamical time lags have been invoked to explain this. We extend this approach by introducing a viscous time lag the gas additionally needs to flow through the AGN's accretion disc before it reaches the central black hole. Our calculations reproduce the observed time lags and are in accordance with the observed correlation between black hole mass and stellar velocity dispersion.

arXiv comment11 pages, 8 figures, accepted by MNRAS

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Cited by in corpus (5)

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• The Relation between Morphological Asymmetry and Nuclear Activity in Low-redshift Galaxies
• What distinguishes the host galaxies of radio-loud and radio-quiet AGNs?
• A Systematic Analysis of Stellar Populations in the Host Galaxies of SDSS Type I QSOs