Waves from the centre: probing PBH and other macroscopic dark matter with LISA
Abstract A significant fraction of cosmological dark matter can be formed by very dense macroscopic objects, for example primordial black holes. Gravitational waves offer a promising way to probe these kinds of dark-matter candidates, in a parameter space region that is relatively untested by electr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2020-07-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-020-8183-4 |
| _version_ | 1818276199093239808 |
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| author | Florian Kühnel Andrew Matas Glenn D. Starkman Katherine Freese |
| author_facet | Florian Kühnel Andrew Matas Glenn D. Starkman Katherine Freese |
| author_sort | Florian Kühnel |
| collection | DOAJ |
| description | Abstract A significant fraction of cosmological dark matter can be formed by very dense macroscopic objects, for example primordial black holes. Gravitational waves offer a promising way to probe these kinds of dark-matter candidates, in a parameter space region that is relatively untested by electromagnetic observations. In this work we consider an ensemble of macroscopic dark matter with masses in the range $$10^{-13}$$ 10-13 –$$1\ M_{\odot }$$ 1M⊙ orbiting a super-massive black hole. While the strain produced by an individual dark-matter particle will be very small, gravitational waves emitted by a large number of such objects will add incoherently and produce a stochastic gravitational-wave background. We show that LISA can be a formidable machine for detecting the stochastic background of such objects orbiting the black hole in the centre of the Milky Way, Sgr $$\mathrm{A}^{\!*}$$ A∗ , if a dark-matter spike of the type originally predicted by Gondolo and Silk forms near the central black hole. |
| first_indexed | 2024-12-12T22:41:51Z |
| format | Article |
| id | doaj.art-ee3b5ed9719d4f89aea09e9f63b11742 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-12T22:41:51Z |
| publishDate | 2020-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-ee3b5ed9719d4f89aea09e9f63b117422022-12-22T00:09:20ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522020-07-018071710.1140/epjc/s10052-020-8183-4Waves from the centre: probing PBH and other macroscopic dark matter with LISAFlorian Kühnel0Andrew Matas1Glenn D. Starkman2Katherine Freese3Department of Physics, The Oskar Klein Centre for Cosmoparticle Physics, Stockholm University, AlbaNova University CentreMax Planck Institute for Gravitational Physics (Albert Einstein Institute)CERCA/ISO, Department of Physics, Case Western Reserve UniversityDepartment of Physics, University of MichiganAbstract A significant fraction of cosmological dark matter can be formed by very dense macroscopic objects, for example primordial black holes. Gravitational waves offer a promising way to probe these kinds of dark-matter candidates, in a parameter space region that is relatively untested by electromagnetic observations. In this work we consider an ensemble of macroscopic dark matter with masses in the range $$10^{-13}$$ 10-13 –$$1\ M_{\odot }$$ 1M⊙ orbiting a super-massive black hole. While the strain produced by an individual dark-matter particle will be very small, gravitational waves emitted by a large number of such objects will add incoherently and produce a stochastic gravitational-wave background. We show that LISA can be a formidable machine for detecting the stochastic background of such objects orbiting the black hole in the centre of the Milky Way, Sgr $$\mathrm{A}^{\!*}$$ A∗ , if a dark-matter spike of the type originally predicted by Gondolo and Silk forms near the central black hole.http://link.springer.com/article/10.1140/epjc/s10052-020-8183-4 |
| spellingShingle | Florian Kühnel Andrew Matas Glenn D. Starkman Katherine Freese Waves from the centre: probing PBH and other macroscopic dark matter with LISA European Physical Journal C: Particles and Fields |
| title | Waves from the centre: probing PBH and other macroscopic dark matter with LISA |
| title_full | Waves from the centre: probing PBH and other macroscopic dark matter with LISA |
| title_fullStr | Waves from the centre: probing PBH and other macroscopic dark matter with LISA |
| title_full_unstemmed | Waves from the centre: probing PBH and other macroscopic dark matter with LISA |
| title_short | Waves from the centre: probing PBH and other macroscopic dark matter with LISA |
| title_sort | waves from the centre probing pbh and other macroscopic dark matter with lisa |
| url | http://link.springer.com/article/10.1140/epjc/s10052-020-8183-4 |
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