Two-Dimensional Radiation-Hydrodynamical Simulations of Core Collapse Supernova Progenitors

Details Two-Dimensional Radiation-Hydrodynamical Simulations of Core Collapse Supernova Progenitors Two-Dimensional Radiation-Hydrodynamical Simulations of Core Collapse Supernova Progenitors

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...204.6307r&link_type=abstract

American Astronomical Society Meeting 204, #63.07; Bulletin of the American Astronomical Society, Vol. 36, p.777

Astronomy and Astrophysics

Astronomy

Scientific paper

We performed simulations using two dimensional EVH-1(Enhanced Virginia Hydrodynamics One) hydrodynamics and radial ray MGFLD (multigroup flux-limited diffusion) neutrino transport in order to simulate doubly diffusive instabilities below the neutrinospheres of core collapse supernova progenitors. The aim is to compare these simulations with the results from our semi-analytical investigation (Bruenn, S. W., Raley, E. A. ,and Mezzacappa, A. submitted to the ApJ). These indicate that below the neutrinosphere a new type of instability, we call Lepto-Entropy Fingers, is present and may play a role in the supernova mechanism.
This work was partially funded by a grant from the DOE Office of Science, Scientific Discovery through Advanced Computing Program.

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