Journal
PHYSICAL REVIEW LETTERS
Volume 127, Issue 16, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.127.161101
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Funding
- European Union's Horizon 2020 Research Council [724659]
- National Science and Engineering Research Council
- Hessian collaborative research cluster ELEMENTS
- Science and Technology Facility Council (STFC), United Kingdom [ST/P000258/1]
- Perimeter Institute for Theoretical Physics
- Government of Canada through the Department of Innovation, Science and Economic Development Canada
- Province of Ontario through the Ministry of Research, Innovation and Science
- European Research Council (ERC) [724659] Funding Source: European Research Council (ERC)
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A search for light axions sourced by neutron stars by analyzing gravitational waves from binary neutron star inspiral GW170817 did not yield any evidence of axions. This null result allowed for constraints to be imposed on axions with masses below 10(-11) eV.
Light axion fields, if they exist, can be sourced by neutron stars due to their coupling to nuclear matter, and play a role in binary neutron star mergers. We report on a search for such axions by analyzing the gravitational waves from the binary neutron star inspiral GW170817. We find no evidence of axions in the sampled parameter space. The null result allows us to impose constraints on axions with masses below 10(-11) eV by excluding the ones with decay constants ranging from 1.6 x 10(16) to 10(18) GeV at a 3 sigma confidence level. Our analysis provides the first constraints on axions from neutron star inspirals, and rules out a large region in parameter space that has not been probed by the existing experiments.
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