Gupta, Anuradha, Datta, Sayantani, Kastha, Shilpa, Borhanian, Ssohrab, Arun, K. G. and Sathyaprakash, B. S.  ORCID: https://orcid.org/0000-0003-3845-7586
2020.
Multiparameter tests of general relativity using multiband gravitational-wave observations.
Physical Review Letters
125
(20)
, 201101.
10.1103/PhysRevLett.125.201101
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Abstract
In this Letter, we show that multiband observations of stellar-mass binary black holes by the next generation of ground-based observatories (3G) and the space-based Laser Interferometer Space Antenna ( L I S A ) would facilitate a comprehensive test of general relativity by simultaneously measuring all the post-Newtonian coefficients. Multiband observations would measure most of the known post-Newtonian phasing coefficients to an accuracy below a few percent—2 orders-of-magnitude better than the best bounds achievable from even “golden” binaries in the 3G or L I S A bands. Such multiparameter bounds would play a pivotal role in constraining the parameter space of modified theories of gravity beyond general relativity.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Physics and Astronomy |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| Date of First Compliant Deposit: | 27 November 2020 |
| Date of Acceptance: | 9 October 2020 |
| Last Modified: | 05 May 2023 01:49 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/136665 |
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