Constraint on modified dispersion relations for gravitational waves from gravitational Cherenkov radiation

Satoshi Kiyota and Kazuhiro Yamamoto
Phys. Rev. D 92, 104036 – Published 19 November 2015

Abstract

We investigate the hypothetical process of gravitational Cherenkov radiation, which may occur in modified gravity theories. We obtain a useful constraint on a modified dispersion relation for propagating modes of gravitational waves, which could be predicted as a consequence of the violation of the Lorentz invariance in modified theories of gravity. The constraint from gravitational Cherenkov radiation and that from direct measurements of the gravitational waves emitted by a compact binary system are complementary to each other.

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  • Received 7 September 2015

DOI:https://doi.org/10.1103/PhysRevD.92.104036

© 2015 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & AstrophysicsParticles & Fields

Authors & Affiliations

Satoshi Kiyota1 and Kazuhiro Yamamoto1,2

  • 1Department of Physical Science, Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-hiroshima, 739-8526, Japan
  • 2Hiroshima Astrophysical Science Center, Hiroshima University, Kagamiyama 1-3-1, Higashi-hiroshima, 739-8526, Japan

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Issue

Vol. 92, Iss. 10 — 15 November 2015

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