In-depth analysis of the clustering of dark matter particles around primordial black holes. Part III: CMB constraints
arXiv:2604.18007 · doi:10.1088/1475-7516/2026/06/092
Abstract
In a mixed dark matter scenario in which primordial black holes (PBHs) would co-exist with thermally produced self-annihilating particles, one expects the former to be surrounded by extremely dense halos made of the latter, built up during radiation domination. Here, as a continuation of previous work, we derive observational limits on such a scenario from a full statistical analysis of cosmic microwave background (CMB) data. We quantify how a tiny fraction $\fbh$ of PBHs could restrict the parameter space available to thermal particle dark matter, limiting the -wave annihilation cross section to values $\lesssim 10^{-30}\,{\rm cm^3/s}\,(\mchi/100\,{\rm GeV})\,(\fbh/10^{-6})^{-3}$ if PBHs are typically heavier than $\sim 10^{-10}\,\Msun$, which can also be turned into constraints on PBHs in this mass range. In contrast, asteroid mass or lighter PBHs could live in perfect peace with these particles. Finally, we shortly discuss the implications of the recent tentative interpretation of Subaru-HSC microlensing events as PBHs.
arXiv comment36 pages, 9 figures
References in corpus (57)
- Supersymmetric Dark Matter
- The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
- Planck 2018 results. I. Overview and the cosmological legacy of Planck
- Dark Matter Candidates from Particle Physics and Methods of Detection
- The Pantheon+ Analysis: Cosmological Constraints
- Did LIGO detect dark matter?
- Freeze-In Production of FIMP Dark Matter
- The MACHO Project: Microlensing Results from 5.7 Years of LMC Observations
- Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds
- Conservative Constraints on Early Cosmology: an illustration of the Monte Python cosmological parameter inference code
- Primordial Black Holes - Perspectives in Gravitational Wave Astronomy -
- Primordial Black Holes as Dark Matter: Recent Developments
- Primordial Black Holes as a dark matter candidate
- DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints
- Indirect Dark Matter Signatures in the Cosmic Dark Ages I. Generalizing the Bound on s-wave Dark Matter Annihilation from Planck
- CMB Constraints on WIMP Annihilation: Energy Absorption During the Recombination Epoch
- Cosmic microwave background limits on accreting primordial black holes
- Thermally Generated Gauge Singlet Scalars as Self-Interacting Dark Matter
- The merger rate of primordial-black-hole binaries
- Effect of Primordial Black Holes on the Cosmic Microwave Background and Cosmological Parameter Estimates
- Threshold of primordial black hole formation
- Gravitational Waves from Coalescing Black Hole MACHO Binaries
- Primordial black hole dark matter from single field inflation
- Relic neutrino decoupling with flavour oscillations revisited
- NANOGrav Hints to Primordial Black Holes as Dark Matter
- CMB bounds on disk-accreting massive Primordial Black Holes
- Damping scales of neutralino cold dark matter
- Particle Models and the Small-Scale Structure of Dark Matter
- Dark matter distributions around massive black holes: A general relativistic analysis
- Indirect Dark Matter Signatures in the Cosmic Dark Ages II. Ionization, Heating and Photon Production from Arbitrary Energy Injections
- Improved constraints on the primordial power spectrum at small scales from ultracompact minihalos
- Effects of cold dark matter decoupling and pair annihilation on cosmological perturbations
- Observational Evidence for Primordial Black Holes: A Positivist Perspective
- Searching for Dark Matter in the CMB: A Compact Parameterization of Energy Injection from New Physics
- Growth of structure seeded by primordial black holes
- WIMPs and stellar-mass primordial black holes are incompatible
- Primordial Black Holes as Dark Matter: Almost All or Almost Nothing
- Bondi accretion in the early universe
- Gamma rays from ultracompact primordial dark matter minihalos
- Exotic energy injection with ExoCLASS: Application to the Higgs portal model and evaporating black holes
- Dark Matter Density Spikes around Primordial Black Holes
- Black Holes and WIMPs: All or Nothing or Something Else
- Novel Constraints on Mixed Dark-Matter Scenarios of Primordial Black Holes and WIMPs
- Dark matter annihilation near a black hole: plateau vs. weak cusp
- Primordial black holes from single-field inflation: a fine-tuning audit
- Astrophysical uncertainties on stellar microlensing constraints on multi-Solar mass primordial black hole dark matter
- The Waning of the WIMP: Endgame?
- In-depth analysis of the clustering of dark matter particles around primordial black holes I: density profiles
- Weak annihilation cusp inside the dark matter spike about a black hole
- Impact of astrophysical processes on the gamma-ray background from dark matter annihilations
- Microlensing constraints on clustered primordial black holes
- Is Dynamical Dark Energy Necessary? DESI BAO and Modified Recombination
- Primordial black hole dark matter in the presence of p-wave WIMP annihilation
- SPT-3G D1: Axion Early Dark Energy with CMB experiments and DESI
- Minihalos as probes of the inflationary spectrum: accurate boost factor calculation and new CMB constraints
- Improved Constraints on Dark Matter Annihilations Around Primordial Black Holes
- Constraining the Coexistence of Freeze-in Dark Matter and Primordial Black Holes