摘要

Observational arguments suggest that the growth phases of the supermassive black holes in active galactic nuclei have a characteristic time-scale similar to 10(5) yr. We show that this is the time-scale 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.

  • 出版日期2015-10-11