LISA observations of supermassive black holes: parameter estimation using full post-Newtonian inspiral waveforms

Abstract

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.

Final version. Accepted for publication in Phys. Rev. D

References in corpus (2)

• Higher harmonics increase LISA's mass reach for supermassive black holes
• Pre-Merger Localization of Gravitational-Wave Standard Sirens With LISA I: Harmonic Mode Decomposition

Cited by in corpus (3)

• Precision of Hubble constant derived using black hole binary absolute distances and statistical redshift information
• Using Full Information When Computing Modes of Post-Newtonian Waveforms From Inspiralling Compact Binaries in Circular Orbit
• Localizing coalescing massive black hole binaries with gravitational waves