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  Extreme Mass-Ratio Inspirals in the Effective-One-Body Approach: Quasi-Circular, Equatorial Orbits around a Spinning Black Hole

Yunes, N., Buonanno, A., Hughes, S. A., Pan, Y., Barausse, E., Miller, M. C., et al. (2011). Extreme Mass-Ratio Inspirals in the Effective-One-Body Approach: Quasi-Circular, Equatorial Orbits around a Spinning Black Hole. Physical Review D, 83(4): 044044. doi:10.1103/PhysRevD.83.044044.

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 Creators:
Yunes, Nicolas, Author
Buonanno, A.1, 2, Author           
Hughes, Scott A., Author
Pan, Yi, Author
Barausse, Enrico, Author
Miller, M. Coleman, Author
Throwe, William, Author
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              
2Maryland Astronomy Center for Theory and Computation & Joint Space-Science Institute, Department of Astronomy, University of Maryland, ou_persistent22              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: We construct effective-one-body waveform models suitable for data analysis with LISA for extreme-mass ratio inspirals in quasi-circular, 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 radian 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 radians in a one year evolution. These corrections are usually one order of magnitude larger than those introduced by the spin of the small object in a one year 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 LISA data analysis purposes.

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 Dates: 2010-09-292011
 Publication Status: Issued
 Pages: 21 pages, 8 figures, submitted to Phys. Rev. D
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 1009.6013
DOI: 10.1103/PhysRevD.83.044044
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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 83 (4) Sequence Number: 044044 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: https://pure.mpg.de/cone/journals/resource/111088197762258