Parameter space metric for 3.5 post-Newtonian gravitational-waves from compact binary inspirals
arXiv:1305.5381 · doi:10.1103/PhysRevD.88.063002
Abstract
We derive the metric on the parameter space of 3.5 post-Newtonian (3.5PN) stationary phase compact binary inspiral waveforms for a single detector, neglecting spin, eccentricity, and finite-body effects. We demonstrate that this leads to better template placement than the current practice of using the 2PN metric to place 3.5PN templates: The recovered event rate is improved by about 10% at a cost of nearly doubling the number of templates. The cross-correlations between mass parameters are also more accurate, which will result in better coincidence tests.
10 pages, 7 figures
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