Cosmic microwave background limits on accreting primordial black holes

  title={Cosmic microwave background limits on accreting primordial black holes},
  author={Yacine Ali-Haimoud and Marc Kamionkowski},
  journal={Physical Review D},
Interest in the idea that primordial black holes (PBHs) might comprise some or all of the dark matter has recently been rekindled following LIGO’s first direct detection of a binary-black-hole merger. Here we revisit the effect of accreting PBHs on the cosmic microwave background (CMB) frequency spectrum and the angular temperature and polarization power spectra. We compute the accretion rate and luminosity of PBHs, accounting for their suppression by Compton drag and Compton cooling by CMB… 
Gravitational waves from primordial black hole mergers
We study the production of primordial black hole (PBH) binaries and the resulting merger rate, accounting for an extended PBH mass function and the possibility of a clustered spatial distribution.
Primordial black hole dark matter and the LIGO/Virgo observations
  • K. Jedamzik
  • Physics
    Journal of Cosmology and Astroparticle Physics
  • 2020
The LIGO/Virgo collaboration have by now detected the mergers of ten black hole binaries via the emission of gravitational radiation. The hypothesis that these black holes have formed during the
Constraints on primordial black hole dark matter from Galactic center X-ray observations
Context. Surprisingly high masses of the black holes inferred from the Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo gravitational wave measurements have lead to speculations
Constraints on primordial black holes
The constraints on the fraction of the Universe that may have gone into primordial black holes (PBHs) over the mass range 10−5 to 1050 g are updated and even if PBHs make a small contribution to the DM, they could play an important cosmological role and provide a unique probe of the early Universe.
Illuminating the dark ages: cosmic backgrounds from accretion onto primordial black hole dark matter
  • G. Hasinger
  • Physics
    Journal of Cosmology and Astroparticle Physics
  • 2020
The recent interpretation of cold dark matter as the sum of contributions of different mass Primordial Black Hole (PBH) families [1] could explain a number of so far unsolved astrophysical mysteries.
Signatures of primordial black holes as seeds of supermassive black holes
It is broadly accepted that Supermassive Black Holes (SMBHs) are located in the centers of most massive galaxies, although there is still no convincing scenario for the origin of their massive seeds.
Improved constraints from ultra-faint dwarf galaxies on primordial black holes as dark matter
Soon after the recent first ever detection of gravitational waves from merging black holes it has been suggested that their origin is primordial. Appealingly, a sufficient number of primordial
Thermal Sunyaev-Zel’dovich anisotropy due to primordial black holes
We investigate the Sunyaev-Zel'dovich (SZ) effect caused by primordial black holes (PBHs) on the cosmic microwave background (CMB) temperature fluctuations. The gas accreting on a PBH heats up by the
Primordial black holes and the origin of the matter–antimatter asymmetry
We review here a new scenario of hot spot electroweak baryogenesis where the local energy released in the gravitational collapse to form primordial black holes (PBHs) at the quark-hadron (QCD) epoch
Prospects of future CMB anisotropy probes for primordial black holes
Cascade of particles injected as Hawking Radiation from Primordial Black Holes (PBH) can potentially change the cosmic recombination history by ionizing and heating the intergalactic medium, which


Black holes
The observational evidence for black holes is reviewed, some recent developments involving cosmic censorship and the statistical origin of black hole entropy are described, and some of their properties are described.
Astrophysics of Gaseous Nebulae and Active Galactic Nuclei
Preface Preface to First Edition General Introduction Photoionization Equilibrium Thermal Equilibrium Calculation of Emitted Spectrum Comparison of Theory with Observations Internal Dynamics of
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