Physics
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aph.....8...21d&link_type=abstract
ASTROPARTICLE PHYSICS, Volume 8, Issue 1-2, p. 21-26.
Physics
10
Scientific paper
The coalescence rate of binary systems consisting of two neutron stars is re-examined in terms of the time evolution and the morphological type of the host galaxy. The present expected rate for elliptical galaxies of the same mass as the Galaxy is about a factor of two lower. The characteristic frequency and amplitude of the gravitational waves emitted during a coalescence event have been calculated, taking into account the planned sensitivity curve of VIRGO's laser interferometric detector. The present calculations indicate that distances up to 34 Mpc may be probed by the French-Italian antenna, but even so only three merging events per century are expected to be detected. However, if the sensitivity of the detector were increased by a factor of two then it should be possible to detect coalescence events in the Centaurus supercluster occurring at a rate of approximately two per year.
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