Rotational Instabilities in Post-Collapse Stellar Cores

Details Rotational Instabilities in Post-Collapse Stellar Cores Rotational Instabilities in Post-Collapse Stellar Cores

2000-12-20

arxiv.org/abs/gr-qc/0012084v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, 10 figures; prepared for the proceedings of the workshop on Astrophysical Sources of Gravitational Radiation

Scientific paper

A core-collapse supernova might produce large amplitude gravitational waves if, through the collapse process, the inner core can aquire enough rotational energy to become dynamically unstable. In this report I present the results of 3-D numerical simulations of core collapse supernovae. These simulations indicate that for some initial conditions the post-collapse inner core is indeed unstable. However, for the cases considered, the instability does not produce a large gravitational-wave signal.

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