Measuring Gravitational-Wave Propagation Speed with Multimessenger Observations
- Creators
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Nishizawa, Atsushi
- Nakamura, Takashi
Abstract
A measurement of gravitational wave (GW) propagation speed is one of important tests of gravity in a dynamical regime. We report a method to measure the GW propagation speed by directly comparing arrival times of GWs, neutrinos from supernovae (SN), and photons from short gamma-ray bursts (SGRB). We found that the future multimessenger observations can test the GW propagation speed with the precision of ~ 10^(-16)-10^(-15), improving the previous suggestions by 9 — 10 orders of magnitude. We also propose a novel method that distinguishes the true signal due to the deviation of GW speed from the speed of light and the intrinsic time delay with compact binaries at cosmological distances.
Additional Information
© 2016 IOP Publishing. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. A. N. is supported by JSPS Postdoctoral Fellowships for Research Abroad, No.25-180. T. N. is supported by Grant-in-Aid for Scientific Research, No.23540305 and No.24103006.Attached Files
Published - Nishizawa_2016_J._Phys.__Conf._Ser._716_012018.pdf
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Additional details
- Eprint ID
- 72603
- Resolver ID
- CaltechAUTHORS:20161206-144558518
- 25-180
- Japan Society for the Promotion of Science (JSPS)
- 23540305
- Japan Society for the Promotion of Science (JSPS)
- 24103006
- Japan Society for the Promotion of Science (JSPS)
- Created
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2016-12-06Created from EPrint's datestamp field
- Updated
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2022-07-12Created from EPrint's last_modified field