Gravitational waves from the collapse of rotating stellar cores

Details Gravitational waves from the collapse of rotating stellar cores Gravitational waves from the collapse of rotating stellar cores

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...246..417m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 246, no. 2, June 1991, p. 417-440.

Astronomy and Astrophysics

Astrophysics

114

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

Scientific paper

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 solar-mass iron cores of 20 solar-mass 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 500-1000 Hz. For the most efficient model, the radiated energy is calculated to be equal to 8 x 10 to the -8th solar mass times c-squared.

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