Gravitational waves from the collapse of rotating stellar cores.
Abstract
The paper presents calculations of the gravitational quadrupole, octupole, and hexadecapole waves resulting from four different numerical axisymmetric iron core collapse models for rotating 1.36 solarmass iron cores of 20 solarmass stars. A recently derived analytic expression was used to determine the waveforms. The four resulting waveforms obtained show qualitatively and quantitatively different shapes, characteristic of the abundance mechanisms of the models. The dimensionless amplitudes range up to 2 x 10 to the 23 at a distance of 10 Mpc with the maximum of the power spectrum in the frequency range 5001000 Hz. For the most efficient model, the radiated energy is calculated to be equal to 8 x 10 to the 8th solar mass times csquared.
 Publication:

Astronomy and Astrophysics
 Pub Date:
 June 1991
 Bibcode:
 1991A&A...246..417M
 Keywords:

 Gravitational Collapse;
 Gravitational Waves;
 Stellar Cores;
 Stellar Rotation;
 Supernova Remnants;
 Supernovae;
 Centrifugal Force;
 Iron;
 Power Spectra;
 Quadrupoles;
 Stellar Models;
 Waveforms;
 Astrophysics