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Extreme mass-ratio inspirals in the effective-one-body approach: quasicircular, equatorial orbits around a spinning black hole

Yunes, N
•
Buonanno, A
•
Hughes, S A
altro
Throwe, W
2011
  • journal article

Periodico
PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Abstract
We construct effective-one-body waveform models suitable for data analysis with the Laser Interferometer Space Antenna for extreme mass-ratio inspirals in quasicircular, equatorial orbits about a spinning supermassive black hole. The accuracy of our model is established through comparisons against frequency-domain, Teukolsky-based waveforms in the radiative approximation. The calibration of eight high-order post-Newtonian parameters in the energy flux suffices to obtain a phase and fractional amplitude agreement of better than 1 rad and 1%, respectively, over a period between 2 and 6 months depending on the system considered. This agreement translates into matches higher than 97% over a period between 4 and 9 months, depending on the system. Better agreements can be obtained if a larger number of calibration parameters are included. Higher-order mass-ratio terms in the effective-one-body Hamiltonian and radiation reaction introduce phase corrections of at most 30 rad in a 1 yr evolution. These corrections are usually 1 order of magnitude larger than those introduced by the spin of the small object in a 1 yr evolution. These results suggest that the effective-one-body approach for extreme mass-ratio inspirals is a good compromise between accuracy and computational price for Laser Interferometer Space Antenna data-analysis purposes.
DOI
10.1103/PhysRevD.83.044044
WOS
WOS:000287713500012
SCOPUS
2-s2.0-79952206964
Archivio
http://hdl.handle.net/20.500.11767/89684
Diritti
metadata only access
Soggetti
  • General Relativity an...

Scopus© citazioni
64
Data di acquisizione
Jun 2, 2022
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Web of Science© citazioni
62
Data di acquisizione
Jun 7, 2022
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