Microlensing and dynamical constraints on primordial black hole dark matter with an extended mass function
The recent discovery of gravitational waves from mergers of ∼10 M⊙ black hole binaries has stimulated interested in primordial black hole (PBH) dark matter in this mass range. Microlensing and dynamical constraints exclude all of the dark matter in compact objects with a delta function mass function...
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| Format: | Article |
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American Physical Society
2016
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| Online Access: | https://eprints.nottingham.ac.uk/37275/ |
| _version_ | 1848795424682409984 |
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| author | Green, Anne M. |
| author_facet | Green, Anne M. |
| author_sort | Green, Anne M. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The recent discovery of gravitational waves from mergers of ∼10 M⊙ black hole binaries has stimulated interested in primordial black hole (PBH) dark matter in this mass range. Microlensing and dynamical constraints exclude all of the dark matter in compact objects with a delta function mass function in the range 10−7 ≲ M=M⊙ ≲ 105. However it has been argued that all of the dark matter could be composed of compact objects in this range with an extended mass function. We explicitly recalculate the microlensing and dynamical constraints for compact objects with an extended mass function which replicates the PBH mass function produced by inflation models. We find that the microlensing and dynamical constraints place conflicting constraints on the width of the mass function, and do not find a mass function which satisfies both constraints. |
| first_indexed | 2025-11-14T19:31:52Z |
| format | Article |
| id | nottingham-37275 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:31:52Z |
| publishDate | 2016 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-372752020-05-04T18:09:21Z https://eprints.nottingham.ac.uk/37275/ Microlensing and dynamical constraints on primordial black hole dark matter with an extended mass function Green, Anne M. The recent discovery of gravitational waves from mergers of ∼10 M⊙ black hole binaries has stimulated interested in primordial black hole (PBH) dark matter in this mass range. Microlensing and dynamical constraints exclude all of the dark matter in compact objects with a delta function mass function in the range 10−7 ≲ M=M⊙ ≲ 105. However it has been argued that all of the dark matter could be composed of compact objects in this range with an extended mass function. We explicitly recalculate the microlensing and dynamical constraints for compact objects with an extended mass function which replicates the PBH mass function produced by inflation models. We find that the microlensing and dynamical constraints place conflicting constraints on the width of the mass function, and do not find a mass function which satisfies both constraints. American Physical Society 2016-09-28 Article PeerReviewed Green, Anne M. (2016) Microlensing and dynamical constraints on primordial black hole dark matter with an extended mass function. Physical Review D, 94 . 063530/1-063530/6. ISSN 1550-2368 http://journals.aps.org/prd/abstract/10.1103/PhysRevD.94.063530 doi:10.1103/PhysRevD.94.063530 doi:10.1103/PhysRevD.94.063530 |
| spellingShingle | Green, Anne M. Microlensing and dynamical constraints on primordial black hole dark matter with an extended mass function |
| title | Microlensing and dynamical constraints on primordial black hole dark matter with an extended mass function |
| title_full | Microlensing and dynamical constraints on primordial black hole dark matter with an extended mass function |
| title_fullStr | Microlensing and dynamical constraints on primordial black hole dark matter with an extended mass function |
| title_full_unstemmed | Microlensing and dynamical constraints on primordial black hole dark matter with an extended mass function |
| title_short | Microlensing and dynamical constraints on primordial black hole dark matter with an extended mass function |
| title_sort | microlensing and dynamical constraints on primordial black hole dark matter with an extended mass function |
| url | https://eprints.nottingham.ac.uk/37275/ https://eprints.nottingham.ac.uk/37275/ https://eprints.nottingham.ac.uk/37275/ |