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Title: Dark matter spikes in the vicinity of Kerr black holes

Journal Article · · Physical Review D
 [1];  [1];  [2]
  1. Washington Univ., St. Louis, MO (United States). Dept. of Physics. McDonnell Center for the Space Sciences
  2. Univ. of Florida, Gainesville, FL (United States). Dept. of Physics; Univ. Pierre et Marie Curie, Paris (France). GReCO. Institut d’Astrophysique de Paris

The growth of a massive black hole will steepen the cold dark matter density at the center of a galaxy into a dense spike, enhancing the prospects for indirect detection. We study the impact of black hole spin on the density profile using the exact Kerr geometry of the black whole in a fully relativistic adiabatic growth framework. We find that, despite the transfer of angular momentum from the hole to the halo, rotation increases significantly the dark matter density close to the black hole. The gravitational effects are still dominated by the black hole within its influence radius, but the larger dark matter annihilation fluxes might be relevant for indirect detection estimates.

Research Organization:
Washington Univ., St. Louis, MO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
FG02-91ER40628
OSTI ID:
1541089
Alternate ID(s):
OSTI ID: 1400439
Journal Information:
Physical Review D, Vol. 96, Issue 8; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 39 works
Citation information provided by
Web of Science

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Cited By (8)

Event Horizon Image within Black Hole Shadow journal April 2019
A family of metric gravities: With a new exact Schwarzschild method, a local space-time relation, strong-field verification targets, and the ability to promote field gravities to full metricity journal April 2018
To see the invisible: Image of the event horizon within the black hole shadow journal October 2019
Dark Matter: An Efficient Catalyst for Intermediate-mass-ratio-inspiral Events journal March 2019
Dark Matter Signatures of Supermassive Black Hole Binaries journal November 2019
Dark matter: an efficient catalyst for intermediate-mass-ratio-inspiral events text January 2018
Event horizon image within black hole shadow text January 2018
Dark Matter Signatures of Supermassive Black Hole Binaries text January 2019

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