Matching post-Newtonian and numerical relativity waveforms: Systematic errors and a new phenomenological model for nonprecessing black hole binaries

Autor(en)

Lucia Santamaria, Frank Ohme, Parameswaran Ajith, Bernd Brügmann, Nils Dorband, Mark Hannam, Sascha Husa, Philipp Mösta, Denis Pollney, Christian Reisswig, Emma L. Robinson, J. Seiler, Badri Krishnan

Abstrakt

We present a new phenomenological gravitational waveform model for the inspiral and coalescence of nonprecessing spinning black hole binaries. Our approach is based on a frequency-domain matching of post-Newtonian inspiral waveforms with numerical relativity based binary black hole coalescence waveforms. We quantify the various possible sources of systematic errors that arise in matching post-Newtonian and numerical relativity waveforms, and we use a matching criteria based on minimizing these errors; we find that the dominant source of errors are those in the post-Newtonian waveforms near the merger. An analytical formula for the dominant mode of the gravitational radiation of nonprecessing black hole binaries is presented that captures the phenomenology of the hybrid waveforms. Its implementation in the current searches for gravitational waves should allow cross-checks of other inspiral-merger-ringdown waveform families and improve the reach of gravitational-wave searches.

Organisation(en)

Gravitationsphysik

Externe Organisation(en)

Max-Planck-Institut für Gravitationsphysik (Albert Einstein Institut), California Institute of Technology (Caltech), Friedrich-Schiller-Universität Jena, University of the Balearic Islands, National Aeronautics & Space Administration (NASA)

Journal

Physical Review D

Band

82

Anzahl der Seiten

21

ISSN

1550-7998

DOI

https://doi.org/10.1103/PhysRevD.82.064016

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

103036 Theoretische Physik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/d61fb023-6a60-4497-9b6c-5454d4057b70