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General Relativity and Quantum Cosmology

Title: Gravitational Wave Polarization Analysis of GW170814

Abstract: We use data from the GW170814 gravitational wave event detected by the three LIGO-VIRGO observatories to study the polarization properties of the gravitational waves. We find that within the LIGO-VIRGO 90% credible region of source sky locations, there is a range in which pure vector polarization is consistent with the observed amplitude ratios. Confirmation of a vector polarization component of gravitational waves would be a sign of post-general relativity physics.
Comments: Version 1 used incorrect strain signal ratios for GW170814 and should be discarded. Here we report on finding a larger range of source sky locations within the LIGO-VIRGO 90% credible region for which a vector polarization model is consistent with the observed strain signal ratios. Figures and references updated in v3
Subjects: General Relativity and Quantum Cosmology (gr-qc)
Cite as: arXiv:1802.01193 [gr-qc]
  (or arXiv:1802.01193v3 [gr-qc] for this version)

Submission history

From: Robert Hilborn [view email]
[v1] Sun, 4 Feb 2018 21:02:46 GMT (516kb)
[v2] Thu, 22 Feb 2018 14:21:28 GMT (523kb)
[v3] Sun, 18 Mar 2018 17:05:29 GMT (434kb)