# Novel constraints on mixed dark-matter scenarios of primordial black holes and WIMPs

@article{Boucenna2018NovelCO,
title={Novel constraints on mixed dark-matter scenarios of primordial black holes and WIMPs},
author={Sofiane Boucenna and Florian Kuhnel and Tommy Ohlsson and Luca Visinelli},
journal={Journal of Cosmology and Astroparticle Physics},
year={2018}
}
• Published 18 December 2017
• Physics
• Journal of Cosmology and Astroparticle Physics
We derive constraints on mixed dark-matter scenarios consisting of primordial black holes (PBHs) and weakly interacting massive particles (WIMPs). In these scenarios, we expect a density spike of the WIMPs that are gravitationally bound to the PBHs, which results in an enhanced annihilation rate and increased indirect detection prospects. We show that such scenarios provide strong constraints on the allowed fraction of PBHs that constitutes the dark matter, depending on the WIMP mass $m_{\chi… ## Figures from this paper Primordial Black Holes as Dark Matter: Recent Developments • Physics • 2020 Primordial black holes (PBHs) could provide the dark matter but a variety of constraints restrict the possible mass windows to$10^{16}$-$10^{17}\,$g,$10^{20}$-$10^{24}\,$g and$10$- Shining primordial black holes • Physics • 2020 We study the well-motivated mixed dark matter (DM) scenario composed of a dominant thermal WIMP, highlighting the case of$SU(2)_L$triplet fermion "winos", with a small fraction of primordial black The abundance of primordial black holes from the global 21cm signal and extragalactic gamma-ray background • Yupeng Yang • Physics The European Physical Journal Plus • 2020 Primordial black holes (PBHs) formed in the early Universe can accret dark matter particles due to gravity and form ultracompact minihalos (UCMHs). The theoretical researches and simulations have Black holes and WIMPs: all or nothing or something else • Physics Monthly Notices of the Royal Astronomical Society • 2021 We consider constraints on primordial black holes (PBHs) in the mass range$(10^{-18}\!-\!10^{15})\, \mathrm{M}_{\odot }$if the dark matter (DM) comprises weakly interacting massive particles Constraints on mixed dark matter model of particles and primordial black holes from the Galactic 511 keV line • Physics • 2020 The 511 keV line was first detected in 1970's but its origin is still unknown. It was proposed that positrons from dark matter (DM) particles in the halo of galaxy are possible sources. We consider a Radio bounds on the mixed dark matter scenarios of primordial black holes and WIMPs • Physics • 2022 We study the synchrotron radio emission in the mixed dark matter scenarios consisting of the primordial black holes (PBHs) and the self-annihilating WIMPs (weakly interacting massive particles). The Primordial black holes as dark matter candidates • Physics SciPost Physics Lecture Notes • 2022 We review the formation and evaporation of primordial black holes (PBHs) and their possible contribution to dark matter. Various constraints suggest they could only provide most of it in the mass CMB and 21-cm bounds on early structure formation boosted by primordial black hole entropy fluctuations • Physics Physical Review D • 2021 The dark matter (DM) can consist of the primordial black holes (PBHs) in addition to the conventional weakly interacting massive particles (WIMPs). The Poisson fluctuations of the PBH number density Constraints on stupendously large black holes • Physics • 2020 We consider the observational constraints on stupendously large black holes (SLABs) in the mass range$M \gtrsim 10^{11}\,M_{\odot}$. These have attracted little attention hitherto and we are aware ## References SHOWING 1-10 OF 145 REFERENCES Constraints on primordial black holes as dark matter candidates from star formation • Physics • 2013 By considering adiabatic contraction of the dark matter (DM) during star formation, we estimate the amount of DM trapped in stars at their birth. If the DM consists partly of primordial black holes Limits on primordial black holes from$\mu$distortions in cosmic microwave background • Physics • 2018 If primordial black holes (PBHs) form directly from inhomogeneities in the early universe, then the number in the mass range$10^6 -10^9M_{\odot}$is severely constrained by upper limits to the Gamma-ray constraints on the first stars from annihilation of light WIMPs • Physics • 2012 We calculate the limits on the fraction of viable dark matter minihalos in the early universe to host Population III.1 stars, surviving today as dark matter spikes in our Milky Way halo. Motivated by Cosmological implications of Primordial Black Holes • Physics • 2017 The possibility that a relevant fraction of the dark matter might be comprised of Primordial Black Holes (PBHs) has been seriously reconsidered after LIGO's detection of a$\sim 30 M_{\odot}\$ binary
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Primordial black holes (PBHs) are black holes which may have formed very early on during the radiation dominated era in the early universe. We present here a method by which the large scale
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Primordial black holes (PBHs) are expected to accrete particle dark matter around them to form ultracompact minihalos (UCMHs), if the PBHs themselves are not most of the dark matter. We show that if