Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...114...53m&link_type=abstract
Astronomy and Astrophysics, vol. 114, no. 1, Oct. 1982, p. 53-59.
Astronomy and Astrophysics
Astrophysics
41
Gravitational Collapse, Gravitational Waves, Stellar Cores, Stellar Models, Stellar Rotation, Energy Spectra, Fourier Transformation
Scientific paper
A post-Newtonian multipole formalism is invoked in a discussion of the gravitational radiation produced by the axisymmetric, Newtonian collapse models of rotating stellar cores examined by Mueller and Hillebrandt (1981). The results of calculations of waveforms and energy losses of the two lowest order multipoles, together with the energy spectrum of the quadrupole radiation, indicate that the gravitational wave signals from supernovae are weaker than earlier, less sophisticated collapse calculations suggested. Total energy loss in the form of gravitational waves is less than 0.000001 of the product of solar mass and c-squared, even for rapidly rotating stellar cores, and for a source located at a distance of 10 Mpc, the corresponding dimensionless wave amplitude is smaller than 10 to the -22nd.
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