Gravitational Radiation during ThorneZytkow object formation.
Abstract
Calculation of gravitational radiation during binary spirallingin leading to the possible formation of a ThorneZytkow (TZ) object (a neutron star inside a supergiant core) is performed. The calculations were done for polytropic density distributions with different indices n, as well as for realistic models of supergiants. A maximum frequency of the emitted gravitational waves during this process was found to range from a few to 300 initial keplerian orbital frequencies, that is from 10^5^ to ~0.1Hz, depending on the model. The dimensionless strain metric amplitude can reach h~10^23.5^ for a source lying 10kpc away from the Sun. We conclude that TZ objects forming at a rate of 1 per 500 yrs in the Galaxy could be potential astrophysical targets for space laser intereferometers. Analysis of gravitational waveforms emitted during TZobject formation could bring a unique information about stellar structure.
 Publication:

Astronomy and Astrophysics
 Pub Date:
 November 1995
 arXiv:
 arXiv:astroph/9505025
 Bibcode:
 1995A&A...303..789N
 Keywords:

 GRAVITATION;
 RELATIVITY;
 BINARIES: CLOSE;
 Astrophysics
 EPrint:
 7 pages, latex, A&