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AGN Flickering and Chaotic Accretion

Observational arguments suggest that the growth phases of the supermassive black holes in active galactic nuclei have a characteristic timescale $\sim 10^5$ yr. We show that this is the timescale expected in the chaotic accretion picture of black hole feeding, because of the effect of self-gravity in limiting the mass of any accretion disc feeding event.

preprint2015arXivOpen access
Andrew KingChris Nixon
astro-ph.GAastro-ph.HE
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Andrew KingChris Nixon

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