Journal article : Letter
Relativistic drag forces on black holes from scalar dark matter clouds of all sizes
- Abstract:
- We use numerical simulations of scalar field dark matter evolving on a moving black hole background to confirm the regime of validity of (semi)analytic expressions derived from first principles for both dynamical friction and momentum accretion in the relativistic regime. We cover both small and large clouds (relative to the de Broglie wavelength of the scalars), and light and heavy particle masses (relative to the black hole size). In the case of a small dark matter cloud, the effect of accretion is a non-negligible contribution to the total force on the black hole, even for small scalar masses. We confirm that this momentum accretion transitions between two regimes (wave and particlelike) and we identify the mass of the scalar at which the transition between regimes occurs.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 481.5KB, Terms of use)
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- Publisher copy:
- 10.1103/physrevd.108.l121502
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review D More from this journal
- Volume:
- 108
- Issue:
- 12
- Article number:
- L121502
- Publication date:
- 2023-12-14
- Acceptance date:
- 2023-09-19
- DOI:
- EISSN:
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2470-0029
- ISSN:
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2470-0010
- Language:
-
English
- Subtype:
-
Letter
- Pubs id:
-
1599214
- Local pid:
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pubs:1599214
- Deposit date:
-
2024-05-09
Terms of use
- Copyright date:
- 2023
- Rights statement:
- Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Society.
- Notes:
- For the purpose of Open Access, the author has applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission.
- Licence:
- CC Attribution (CC BY)
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