Hyper-accreting black holes

  title={Hyper-accreting black holes},
  author={Andrei M. Beloborodov},
Hyper-accretion disks are short-lived, powerful sources o f neutrinos and magnetized jets. Such disks are plausible sources of gamma-ray bursts. This r eview describes the disk structure, the neutrino conversion to electron-positron plasma around th e disk, and the post-burst evolution.