Gravitational waves from inspiralling compact binaries: Parameter estimation using second-post-Newtonian waveforms

Details Gravitational waves from inspiralling compact binaries: Parameter estimation using second-post-Newtonian waveforms Gravitational waves from inspiralling compact binaries: Parameter estimation using second-post-Newtonian waveforms

1995-02-24

arxiv.org/abs/gr-qc/9502040v1

Phys.Rev.D52:848-855,1995

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

14 pages, ReVTeX

Scientific paper

10.1103/PhysRevD.52.848

The parameters of inspiralling compact binaries can be estimated using matched filtering of gravitational-waveform templates against the output of laser-interferometric gravitational-wave detectors. Using a recently calculated formula, accurate to second post-Newtonian (2PN) order [order $(v/c)^4$, where $v$ is the orbital velocity], for the frequency sweep ($dF/dt$) induced by gravitational radiation damping, we study the statistical errors in the determination of such source parameters as the ``chirp mass'' $\cal M$, reduced mass $\mu$, and spin parameters $\beta$ and $\sigma$ (related to spin-orbit and spin-spin effects, respectively). We find that previous results using template phasing accurate to 1.5PN order actually underestimated the errors in $\cal M$, $\mu$, and $\beta$. For two inspiralling neutron stars, the measurement errors increase by less than 16 percent.

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