THE IMPACT OF SUPERNOVA EXPLOSIONS ON THE STRUCTURE AND EVOLUTION OF AGN DISCS

Authors
ROZYCZKA M BODENHEIMER P LIN DNC
Citation
M. Rozyczka et al., THE IMPACT OF SUPERNOVA EXPLOSIONS ON THE STRUCTURE AND EVOLUTION OF AGN DISCS, Monthly Notices of the Royal Astronomical Society, 276(2), 1995, pp. 597-606
Citations number
31
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Monthly Notices of the Royal Astronomical Society → ACNP
ISSN journal
00358711
Volume
276
Issue
2
Year of publication
1995
Pages
597 - 606
Database
ISI
SICI code
0035-8711(1995)276:2<597:TIOSEO>2.0.ZU;2-#
Abstract
Two-dimensional numerical simulations of supernova explosions in the i nnermost 1 pc of an AGN accretion disc are presented. It is found that the explosions do not disrupt the disc. However, they can induce a su bstantial angular momentum redistribution. Based on the explosion rate derived from the frequency of stellar captures by the disc from the s tellar core of the parent galaxy, it is estimated that supernovae prov ide a rate of angular momentum transfer corresponding to alpha similar to 0.1-1 in the standard accretion disc model.