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dc.contributor.author | Kocsis, Bence | en |
dc.contributor.author | Suyama, Teruaki | en |
dc.contributor.author | Tanaka, Takahiro | en |
dc.contributor.author | Yokoyama, Shuichiro | en |
dc.contributor.alternative | 田中, 貴浩 | ja |
dc.date.accessioned | 2018-05-15T04:10:39Z | - |
dc.date.available | 2018-05-15T04:10:39Z | - |
dc.date.issued | 2018-02-10 | - |
dc.identifier.issn | 1538-4357 | - |
dc.identifier.uri | http://hdl.handle.net/2433/231102 | - |
dc.description.abstract | It has been proposed that primordial black holes (PBHs) form binaries in the radiation dominated era. Once formed, some fraction of them may merge within the age of the universe by gravitational radiation reaction. We investigate the merger rate of the PBH binaries when the PBHs have a distribution of masses around O(10)M⨀, which is a generalization of the previous studies where the PBHs are assumed to have the same mass. After deriving a formula for the merger time probability distribution in the PBH mass plane, we evaluate it under two different approximations. We identify a quantity constructed from the mass distribution of the merger rate density per unit cosmic time and comoving volume R(m₁, m₂), α = -(m₁+m₂)² δ² In R/δm₁δm₂, which universally satisfies 0.97≲α≲1.05 for all binary masses independently of the PBH mass function. This result suggests that the measurement of this quantity is useful for testing the PBH scenario. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Astronomical Society | en |
dc.rights | Original 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. | en |
dc.title | Hidden Universality in the Merger Rate Distribution in the Primordial Black Hole Scenario | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | The Astrophysical Journal | en |
dc.identifier.volume | 854 | - |
dc.identifier.issue | 1 | - |
dc.relation.doi | 10.3847/1538-4357/aaa7f4 | - |
dc.textversion | publisher | - |
dc.identifier.artnum | 41 | - |
dc.address | Institute of Physics, Eötvös University | en |
dc.address | Research Center for the Early Universe (RESCEU), Graduate School of Science, The University of Tokyo | en |
dc.address | Department of Physics, Kyoto University・Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University | en |
dc.address | Department of Physics, Rikkyo University・Kavli IPMU (WPI), UTIAS, The University of Tokyo | en |
dcterms.accessRights | open access | - |
datacite.awardNumber | 17H06357 | - |
datacite.awardNumber | 17H06358 | - |
datacite.awardNumber | 17H06359 | - |
datacite.awardNumber | 15H05888 | - |
datacite.awardNumber | 15H02087 | - |
datacite.awardNumber | 15K21733 | - |
datacite.awardNumber | 15K17632 | - |
datacite.awardNumber | 15K17659 | - |
datacite.awardNumber | 26287044 | - |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
jpcoar.funderName.alternative | Japan Society for the Promotion of Science (JSPS) | en |
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