Authors: M. Tessmer, A. Gopakumar Date: 19 Dec 2007 Abstract: Compact binaries inspiralling along eccentric orbits are plausible gravitational wave (GW) sources for ground-based laser interferometers. We explore losses in event rates incurred when searching for GWs from compact binaries inspiralling along post-Newtonian accurate eccentric orbits with certain obvious non-optimal search templates. For the present analysis, GW signals having 2.5 post-Newtonian accurate orbital evolution are modeled following the phasing formalism, presented in [T. Damour, A. Gopakumar, and B. R. Iyer, Phys. Rev. D 70, 064028 (2004)]. The associated search templates are the usual time domain Taylor approximants for compact binaries in quasi-circular orbits, also having 2.5PN accurate non-stationary orbital phase evolution. We observe that these templates are highly inefficient in capturing our realistic GW signals having tiny residual eccentricities. We present reasons for our observations and provide certain possible remedies. |
0712.3199
(/preprints)
2007-12-19, 18:27
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