Numerical-relativity validation of effective-one-body waveforms in the intermediate-mass-ratio regime
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00560029" target="_blank" >RIV/67985815:_____/22:00560029 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/22:10447366
Result on the web
<a href="https://doi.org/10.1103/PhysRevD.105.124061" target="_blank" >https://doi.org/10.1103/PhysRevD.105.124061</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.105.124061" target="_blank" >10.1103/PhysRevD.105.124061</a>
Alternative languages
Result language
angličtina
Original language name
Numerical-relativity validation of effective-one-body waveforms in the intermediate-mass-ratio regime
Original language description
One of the open problems in developing binary black hole (BBH) waveforms for gravitational wave astronomy is to model the intermediate-mass-ratio regime and connect it to the extreme-mass-ratio regime. A natural approach is to employ the effective-one-body (BOB) approach to the two-body dynamics that, by design, can cover the entire mass ratio range and naturally incorporates the extreme-mass-ratio limit. Here we use recently obtained numerical relativity (NR) data with mass ratios m(1)/m(2) = (7, 15, 32, 64, 128) to test the accuracy of the state-of-the-art EOB model TEOBResumS in the intermediate-mass-ratio regime. We generally find an excellent EOB/NR consistency around merger and ringdown for all mass ratios and for all available subdominant multipoles, except for the l = m = 5 one. This mode can be crucially improved using the new large mass ratio NR data of this paper. The EOB/NR inspirals are also consistent with the estimated NR uncertainties. We also use several NR datasets taken by different public catalogs to probe the universal behavior of the multipolar hierarchy of waveform amplitudes at merger, that smoothly connects the equal-mass BBH to the test-mass result. Interestingly, the universal behavior is strengthened if the nonoscillatory memory contribution is included in the NR waveform. Future NR simulations with improved accuracy will be necessary to further probe, and possibly quantitatively refine, the TEOBResumS transition from late inspiral to plunge in the intermediate-mass-ratio regime.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
2470-0029
Volume of the periodical
105
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
19
Pages from-to
124061
UT code for WoS article
000835379100009
EID of the result in the Scopus database
2-s2.0-85134263107