Multiparameter tests of general relativity using multiband gravitational-wave observations

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

Preview

PDF - Published Version Download (353kB) | Preview

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:	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

Citation Data

Cited 19 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item