Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2007-07-30
Phys.Rev.D77:024030,2008
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
Final version. Accepted for publication in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.77.024030
We study parameter estimation of supermassive black hole binary systems in the final stage of inspiral using the full post-Newtonian gravitational waveforms. We restrict our analysis to systems in circular orbit with negligible spins, in the mass range $10^8\Ms-10^5\Ms$, and compare the results with those arising from the commonly used restricted post-Newtonian approximation. The conclusions of this work are particularly important with regard to the astrophysical reach of future LISA measurements. Our analysis clearly shows that modeling the inspiral with the full post-Newtonian waveform, not only extends the reach to higher mass systems, but also improves in general the parameter estimation. In particular, there are remarkable improvements in angular resolution and distance measurement for systems with a total mass higher than $5\times10^6\Ms$, as well as a large improvement in the mass determination.
Sintes Alicia M.
Trias Miquel
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