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          Institute: MPI für Gravitationsphysik     Collection: Astrophysical Relativity     Display Documents



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ID: 398321.0, MPI für Gravitationsphysik / Astrophysical Relativity
Comparison between numerical relativity and a new class of post-Newtonian gravitational-wave phase evolutions: The nonspinning equal-mass case
Authors:Gopakumar, Achamveedu; Hannam, Mark; Husa, Sascha; Brügmann, Bernd
Date of Publication (YYYY-MM-DD):2008-09-10
Title of Journal:Physical Review D
Volume:78
Issue / Number:6
Sequence Number of Article:064026
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:We compare the phase evolution of equal-mass nonspinning black-hole binaries from numerical relativity (NR) simulations with post-Newtonian (PN) results obtained from three PN approximants: the TaylorT1 and T4 approximants, for which NR-PN comparisons have already been performed in the literature, and the recently proposed approximant TaylorEt. The accumulated phase disagreement between NR and PN results over the frequency range Momega=0.0455 to Momega=0.1 is greater for TaylorEt than either T1 or T4, but has the attractive property of decreasing monotonically as the PN order is increased.
External Publication Status:published
Document Type:Article
Communicated by:Bernhard F. Schutz
Affiliations:MPI für Gravitationsphysik/Astrophysical Relativity
Identifiers:URL:http://link.aps.org/doi/10.1103/PhysRevD.78.064026
ISSN:1089-4918
DOI:10.1103/PhysRevD.78.064026
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