Dark Matter Annihilation around Intermediate Mass Black Holes: an update
arXiv:0905.4736 · doi:10.1088/1367-2630/11/10/105016
Abstract
The formation and evolution of Black Holes inevitably affects the distribution of dark and baryonic matter in the neighborhood of the Black Hole. These effects may be particularly relevant around Supermassive and Intermediate Mass Black Holes (IMBHs), the formation of which can lead to large Dark Matter overdensities, called {\em spikes} and {\em mini-spikes} respectively. Despite being larger and more dense, spikes evolve at the very centers of galactic halos, in regions where numerous dynamical effects tend to destroy them. Mini-spikes may be more likely to survive, and they have been proposed as worthwhile targets for indirect Dark Matter searches. We review here the formation scenarios and the prospects for detection of mini-spikes, and we present new estimates for the abundances of mini-spikes to illustrate the sensitivity of such predictions to cosmological parameters and uncertainties regarding the astrophysics of Black Hole formation at high redshift. We also connect the IMBHs scenario to the recent measurements of cosmic-ray electron and positron spectra by the PAMELA, ATIC, H.E.S.S., and Fermi collaborations.
12 pages, 7 figures. Invited contribution to NJP Focus Issue on "Dark Matter and Particle Physics"
References in corpus (19)
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Clumps and streams in the local dark matter distribution
- Cosmology and Astrophysics of Minimal Dark Matter
- Can the WIMP annihilation boost factor be boosted by the Sommerfeld enhancement?
- The effect of a late decaying scalar on the neutralino relic density
- Pre-launch estimates for GLAST sensitivity to Dark Matter annihilation signals
- The galactic antiproton spectrum at high energies: background expectation vs. exotic contributions
- Dark matter annihilation or unresolved astrophysical sources? Anisotropy probe of the origin of cosmic gamma-ray background
- Collisionally Regenerated Dark Matter Structures in Galactic Nuclei
- Revealing dark matter substructure with anisotropies in the diffuse gamma-ray background
- Can Dark Matter Annihilation Dominate the Extragalactic Gamma-Ray Background?
- Prospects for detecting Dark Matter with neutrino telescopes in Intermediate Mass Black Holes scenarios
- Antiproton and Positron Signal Enhancement in Dark Matter Mini-Spikes Scenarios
- Dark matter annihilation from intermediate-mass black holes: Contribution to the extragalactic gamma-ray background
- LISA detection of massive black hole binaries: imprint of seed populations and of exterme recoils
- Search for Gamma-rays from Dark Matter annihilations around Intermediate Mass Black Holes with the H.E.S.S. experiment
- Black Holes as Dark Matter Annihilation Boosters
- Gamma-Rays from Dark Matter Mini-Spikes in M31
- Enhancement of Dark Matter Abundance in Scalar-Tensor Dark Energy
Cited by in corpus (27)
- A review of indirect searches for particle dark matter
- Dark matter distributions around massive black holes: A general relativistic analysis
- Emergent Flux from Particle Collisions Near a Kerr Black Hole
- Extreme Dark Matter Tests with Extreme Mass Ratio Inspirals
- VERITAS Search for VHE Gamma-ray Emission from Dwarf Spheroidal Galaxies
- The Formation of Intermediate Mass Black Holes in Galactic Nuclei
- A Unique Multi-Messenger Signal of QCD Axion Dark Matter
- Numerical estimation of the escaping flux of massless particles created in collisions around a Kerr black hole
- Origins of sharp cosmic-ray electron structures and the DAMPE excess
- Dark matter subhalos and unidentified sources in the Fermi 3FGL source catalog
- Complementarity of Indirect and Accelerator Dark Matter Searches
- Adiabatically compressed wave dark matter halo and intermediate-mass ratio inspirals
- Formation of Dark Matter Torii Around Supermassive Black Holes Via The Eccentric Kozai-Lidov Mechanism
- Periapsis shifts in dark matter distribution around a black hole
- Black Holes in our Galactic Halo: Compatibility with FGST and PAMELA Data and Constraints on the First Stars
- No WIMP Mini-Spikes in Dwarf Spheroidal Galaxies
- General formulae for the periapsis shift of a quasi-circular orbit in static spherically symmetric spacetimes and the active gravitational mass density
- Gamma-Ray Constraints on the First Stars from Annihilation of Light WIMPs
- Origin of the DAMPE 1.4 TeV peak
- Constraints on a Non-thermal History from Galactic Dark Matter Spikes
- Menus for Feeding Black Holes
- Neutrino point source searches for dark matter spikes
- Gamma rays from dark matter spikes in EAGLE simulations
- Constraining the population of intermediate mass black holes by gamma-ray data of the Fornax cluster
- Investigating the dark matter minispikes with the gamma-ray signal from the halo of M31
- Dark Matter and Fundamental Physics Searches with IACTs
- Unidentified Fermi Objects in the view of H.E.S.S. -- Possible Dark Matter Clumps