Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1994-04-01
Phys.Rev.D50:6080-6088,1994
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
Revtex 9 pages + 6 figures ( Can be obtained by "anonymous" ftp from 144.16.31.1 in dir /pub/rbs. Submitted to Physical Review
Scientific paper
10.1103/PhysRevD.50.6080
Coalescing binary systems are one of the most promising sources of gravitational waves. The technique of matched filtering used in the detection of gravitational waves from coalescing binaries relies on the construction of accurate templates. Until recently filters modelled on the quadrupole or the Newtonian approximation were deemed sufficient. Recently it was shown that post-Newtonian effects contribute to a secular growth in the phase difference between the actual signal and its corresponding Newtonian template. In this paper we investigate the possibility of compensating for the phase difference caused by the post-Newtonian terms by allowing for a shift in the Newtonian filter parameters. We find that Newtonian filters perform adequately for the purpose of detecting the presence of the signal for both the initial and the advanced LIGO detectors.
Balasubramanian Ramkumar
Dhurandhar Sanjeev V.
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