Neutrino‐dominated Accretion and Supernovae
- 10 August 2005
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 629 (1), 341-361
- https://doi.org/10.1086/431354
Abstract
We suggest that part of the infalling material during the core-collapse of a massive star goes into orbit around the compact core to form a hot, dense, centrifugally-supported accretion disk whose evolution is strongly influenced by neutrino interactions. Under a wide range of conditions, this neutrino-dominated accretion flow will be advection-dominated and will develop a substantial outflowing wind. We estimate the energy carried out in the wind and find that it exceeds $10^{50}$ erg for a wide range of parameters and even exceeds 10^{51} erg for reasonable parameter choices. We propose that the wind energy will revive a stalled shock and will help produce a successful supernova explosion. We discuss the role of the disk wind in both prompt and delayed explosions. While both scenarios are feasible, we suggest that a delayed explosion is more likely, and perhaps even unavoidable. Finally, we suggest that the disk wind may be a natural site for r-process nucleosynthesis.Comment: 53 pages, 14 figures, to appear in Ap
Keywords
Other Versions
This publication has 79 references indexed in Scilit:
- General Relativistic Effects in the Core Collapse Supernova MechanismThe Astrophysical Journal, 2001
- On the fate of gas accreting at a low rate on to a black holeMonthly Notices of the Royal Astronomical Society, 1999
- A note on the conditions for SSD--ADAF transitionsMonthly Notices of the Royal Astronomical Society, 1998
- Ion screening effects and stellar collapsePhysical Review D, 1997
- On the Nature of Core-Collapse Supernova ExplosionsThe Astrophysical Journal, 1995
- A Theory of Supernova ExplosionsThe Astrophysical Journal, 1993
- A powerful local shear instability in weakly magnetized disks. I - Linear analysis. II - Nonlinear evolutionThe Astrophysical Journal, 1991
- Revival of a stalled supernova shock by neutrino heatingThe Astrophysical Journal, 1985
- Stellar core collapse - Numerical model and infall epochThe Astrophysical Journal Supplement Series, 1985
- MASS DEPENDENCE IN GRAVITATIONAL COLLAPSE OF STELLAR CORESCanadian Journal of Physics, 1967