Abstract
We consider gravitational radiation in the nonspherical symmetrical evolution of supernovae. Unlike the gravitational radiation analysis of Imshennik & Popov performed using the formalism of Peters & Mathews, our analysis uses the (PN)5/2 approximation by Damour & Deruelle and Lincoln & Will. We show that the eccentricity is larger than 0.1 at the time when the Roche lobe is filled by the low-mass component, demonstrating that the conclusion of Imshennik and Popov that the final eccentricity is less than 0.1 is incorrect. If the supernova lies in the Large Magellanic Cloud (R = 50 kpc), we estimate the amplitude of gravitational waves to be h ≈ 8 × 10-20. The frequency of the emitted gravitational waves is about 1 kHz.
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Zakharov, A. Supernovae as a Powerful Source of Gravitational Radiation. Astrophysics and Space Science 252, 213–224 (1997). https://doi.org/10.1023/A:1000838806364
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DOI: https://doi.org/10.1023/A:1000838806364