Work

Simulation of the Spherically Symmetric Stellar Core Collapse, Bounce, and Postbounce Evolution of a Star of 13 Solar Masses with Boltzmann Neutrino Transport, and Its Implications for the Supernova Mechanism

Year: 2001

Type: article

Abstract: With exact three-flavor Boltzmann neutrino transport, we simulate the stellar core collapse, bounce, and postbounce evolution of a 13M star in spherical symmetry, the Newtonian limit, without invoking convection. In the absence of convection, prior spherically symmetric models, which implemented approximations to Boltzmann transport, failed to produce explosions. We consider exact transport to determine if these failures were due to the transport approximations made and to answer remaining fundamental questions in supernova theory. The model presented here is the first in a sequence of models beginning with different progenitors. In this model, a supernova explosion is not obtained.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.86.1935

Authors: Anthony Mezzacappa, Matthias Liebendörfer, O. E. Bronson Messer, W. Raphael Hix, Friedrich-Karl Thielemann, Stephen W. Bruenn

Institutions: Oak Ridge National Laboratory, University of Basel, University of Tennessee at Knoxville, Florida Atlantic University

Language: English

Topic: Gamma-ray bursts and supernovae

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green