Tests of general relativity with stellar-mass black hole binaries observed by LISA

Toubiana, Alexandre; Marsat, Sylvain; Babak, S.; Barausse, Enrico; Baker, John G.

doi:10.1103/physrevd.101.104038

Cited by 42 publications

(51 citation statements)

References 102 publications

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“…In Ref. [54], these generic features have been confirmed, for the first time, with a treatment of the problem within the Bayesian inference framework.…”

Section: Introductionmentioning

confidence: 79%

“…In the past few years, an alternative strategy to combine these two classes of observations has been proposed as a new tool to probe the strong-field dynamics [48][49][50][51][52][53][54] of BBHs. This is often referred to as multiband GW astronomy [55], where, using a class of sources visible in both LISA and 3G, one combines the low-frequency content (the early dynamics of compact binaries) in the LISA band and the high-frequency content (carrying an imprint of the late-time dynamics of compact binaries) in the 3G band to obtain bounds on departures from GR.…”

Section: Introductionmentioning

confidence: 99%

“…Various studies on multiband parameter estimation mostly used stellar-mass BBHs like GW150914, which will have a signal-to-noise ratio (SNR) of order unity in the LISA band, but a ratio of several hundreds to thousands in the 3G band. Even then, in these studies, joint observation has been argued to be able to provide bounds several orders of magnitude better than those from individual observations [50][51][52][53][54]. This huge improvement has been broadly attributed to the combination of the low-frequency sensitivity of LISA with the high-frequency response of the 3G detectors.…”

Section: Introductionmentioning

confidence: 99%

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Tests of general relativity using multiband observations of intermediate mass binary black hole mergers

et al. 2021

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Observation of gravitational waves (GWs) in two different frequency bands is referred to as multiband GW astronomy. With the planned Laser Interferometric Space Antenna (LISA) operating in the 10 −4 -0.1 Hz range, and third-generation (3G) ground-based detectors such as the Cosmic Explorer (CE) and Einstein Telescope (ET) operating in the 1-10 4 Hz range, multiband GW astronomy could be a reality in the coming decades. In this paper, we present the potential of multiband observations of intermediate-mass binary black holes (IMBBHs) of component masses ∼10 2 -10 3 M ⊙ to test general relativity (GR). We show that mutiband observations of IMBBHs would permit multiparameter tests of GR-tests where more than one post-Newtonian (PN) coefficient is simultaneously measured-yielding more rigorous constraints on possible modifications to GR. We also find that the improvement due to multibanding can often be much larger than the best of the bounds from either of the two observatories. The origin of this result, as we shall demonstrate, can be traced to the lifting of degeneracies among the various parameters when the information from LISA and 3G is taken together. A binary of redshifted total mass of 200 M ⊙ gives the best bounds. Such a system at 1 Gpc and mass ratio m 1 =m 2 ¼ 2 would bound the deviations on all the PN coefficients to below 10% when they are measured individually, and additionally place simultaneous bounds on the first seven PN coefficients to below 50%.

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“…In Ref. [54], these generic features have been confirmed, for the first time, with a treatment of the problem within the Bayesian inference framework.…”

Section: Introductionmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tests of general relativity using multiband observations of intermediate mass binary black hole mergers

et al. 2021

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“…This study was immediately followed up with more detailed analyses. The works include (but not limited to) the improved estimation of source parameters [25,26], tests of GR with high precision [27][28][29][30][31][32], refined event rate estimations [33], probing environment effects [34,35], and new data analysis ideas [36]; these all prove the scientific values added by the multiband observation. Among these investigations, Refs.…”

Section: Parameter Symbolmentioning

confidence: 99%

Scope Out Multiband Gravitational-Wave Observations of GW190521-Like Binary Black Holes with Space Gravitational Wave Antenna B-DECIGO

et al. 2021

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The gravitational wave event, GW190521, is the most massive binary black hole merger observed by ground-based gravitational wave observatories LIGO/Virgo to date. While the observed gravitational wave signal is mainly in the merger and ringdown phases, the inspiral gravitational wave signal of the GW190521-like binary will be more visible to space-based detectors in the low-frequency band. In addition, the ringdown gravitational wave signal will be louder in the next generation (3G) of ground-based detectors in the high-frequency band, displaying the great potential of multiband gravitational wave observations. In this paper, we explore the scientific potential of multiband observations of GW190521-like binaries with a milli-Hz gravitational wave observatory: LISA; a deci-Hz observatory: B-DECIGO; and (next generation of) hecto-Hz observatories: aLIGO and ET. In the case of quasicircular evolution, the triple-band observations of LISA, B-DECIGO, and ET will provide parameter estimation errors of the masses and spin amplitudes of component black holes at the level of order of 1–10%. This would allow consistency tests of general relativity in the strong field at an unparalleled precision, particularly with the “B-DECIGO + ET” observation. In the case of eccentric evolution, the multiband signal-to-noise ratio found in “B-DECIGO + ET” observation would be larger than 100 for a five-year observation prior to coalescence, even with high final eccentricities.

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“…For example, Ref. [27][28][29] examined the projected constraints on the bounds on dipolar GW radiation, Ref. [30] investigated the bounds on singleparameter tests of GR and Ref.…”

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confidence: 99%

Multiparameter Tests of General Relativity Using Multiband Gravitational-Wave Observations

et al. 2020

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Tests of general relativity with stellar-mass black hole binaries observed by LISA

Cited by 42 publications

References 102 publications

Tests of general relativity using multiband observations of intermediate mass binary black hole mergers

Tests of general relativity using multiband observations of intermediate mass binary black hole mergers

Scope Out Multiband Gravitational-Wave Observations of GW190521-Like Binary Black Holes with Space Gravitational Wave Antenna B-DECIGO

Multiparameter Tests of General Relativity Using Multiband Gravitational-Wave Observations

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