Two-Dimensional Radiation-Hydrodynamical Simulations of Core Collapse Supernova Progenitors for the Analysis of Convection Beneath Their Neutrinospheres

Details Two-Dimensional Radiation-Hydrodynamical Simulations of Core Collapse Supernova Progenitors for the Analysis of Convection Beneath Their Neutrinospheres Two-Dimensional Radiation-Hydrodynamical Simulations of Core Collapse Supernova Progenitors for the Analysis of Convection Beneath Their Neutrinospheres

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.7119r&link_type=abstract

American Astronomical Society Meeting 205, #71.19; Bulletin of the American Astronomical Society, Vol. 36, p.1467

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 code in order to simulate doubly diffusive instabilities below the neutrinospheres of core collapse supernova progenitors. The results of these simulations are compared with the results of our semi-analytical investigation (Bruenn, S. W., Raley, E. A., and Mezzacappa, A., ApJ in press), which 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 though Advanced Computing Program.

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