Constraining Gravitational Wave Polarization with GW190521 and ZTF19abanrhr
Abstract
Gravitational waves (GWs) in general relativity are assumed to contain only tensorial polarization states, with generic metric theories of gravity also allowing for vector- and scalar-polarized GWs. Assuming an association between the gravitational-wave and electromagnetic transients GW190521 and ZTF19abanrhr, we find a preference for tensorial GWs with a log10 Bayes factor of 21.6 (with respect to vector-polarized GWs) and 38.4 (with respect to scalar-polarized GWs).
- Publication:
-
Research Notes of the American Astronomical Society
- Pub Date:
- November 2020
- DOI:
- 10.3847/2515-5172/abcb99
- Bibcode:
- 2020RNAAS...4..209H
- Keywords:
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- Gravitational waves;
- Gravitational wave astronomy;
- Black holes;
- High energy astrophysics;
- Black hole physics;
- General relativity;
- Relativity