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arxiv 2010.04797 v1 pith:6HSX36LB submitted 2020-10-09 astro-ph.CO astro-ph.HEgr-qchep-ph

Direct Detection of Hawking Radiation from Asteroid-Mass Primordial Black Holes

classification astro-ph.CO astro-ph.HEgr-qchep-ph
keywords blackdarkmatterprimordialholesasteroid-massevaporationhawking
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Light, asteroid-mass primordial black holes, with lifetimes in the range between hundreds to several millions times the age of the universe, are well-motivated candidates for the cosmological dark matter. Using archival COMPTEL data, we improve over current constraints on the allowed parameter space of primordial black holes as dark matter by studying their evaporation to soft gamma-rays in nearby astrophysical structures. We point out that a new generation of proposed MeV gamma-ray telescopes will offer the unique opportunity to directly detect Hawking evaporation from observations of nearby dark matter dense regions and to constrain, or discover, the primordial black hole dark matter.

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Cited by 14 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Microscopic primordial black holes as macroscopic dark matter from large extra dimensions

    astro-ph.CO 2026-04 unverdicted novelty 7.0

    In the ADD extra-dimension model, microscopic primordial black holes undergo runaway accretion and grow to macroscopic scales, allowing them to comprise all dark matter with initial abundances as low as 10^{-44}.

  2. Primordial black hole in Lorentz-violating theories: Insights from Bumblebee gravity

    gr-qc 2026-07 conditional novelty 6.0

    Bumblebee gravity enhances primordial black hole abundance through three mechanisms, but the model harbors a ghost instability and a tachyonic instability that make it cosmologically unviable.

  3. PBHs and GWs from Scaling Monopoles

    hep-ph 2026-06 unverdicted novelty 6.0

    Scaling monopoles generate PBHs via stochastic overdensities and GWs with correlated spectra, potentially with magnetically charged PBHs as a signature if the scaling ends via gauge boson mass.

  4. Asteroid-mass Primordial Black Holes as Dark Matter from Supersymmetry

    hep-ph 2026-04 unverdicted novelty 6.0

    Supersymmetry with heavy particles above ~10^5 GeV enhances asteroid-mass PBH production via transient equation-of-state softening, allowing them to comprise all dark matter unlike in the Standard Model.

  5. High-energy neutrino constraints on primordial black holes as dark matter

    astro-ph.HE 2026-04 unverdicted novelty 6.0

    High-energy neutrino telescopes constrain sub-asteroid mass primordial black holes with extended mass functions as dark matter, yielding limits slightly weaker than but independent of gamma-ray bounds.

  6. $\tt BlackHawk$ $\tt v3.0$: Hawking Radiation from Regular Black Holes

    gr-qc 2026-06 unverdicted novelty 5.0

    BlackHawk v3.0 adds Hawking temperatures and greybody factors for multiple regular black hole metrics to an existing public code via numerical routines.

  7. Electromagnetic Signatures From Primordial Black Holes in the Solar System

    hep-ph 2026-05 unverdicted novelty 5.0

    Calculations show AMEGO-X could detect PBH transits within 0.1 AU of Earth while HAWC and LHAASO could see explosions out to 0.1-0.5 pc, with future 1000 AU bursts potentially yielding measurable EM signals unlike the...

  8. Electromagnetic Signatures From Primordial Black Holes in the Solar System

    hep-ph 2026-05 unverdicted novelty 5.0

    Calculations indicate AMEGO-X could detect PBH transits within 0.1 AU while HAWC and LHAASO could observe explosions out to 0.1-0.5 pc, with future events at ~1000 AU potentially producing measurable electromagnetic s...

  9. Hunting Sterile Neutrino Dark Matter in the MeV Gap

    hep-ph 2026-04 unverdicted novelty 5.0

    Future MeV telescopes are projected to improve existing limits on sterile neutrino dark matter decay rates by several orders of magnitude.

  10. Memory-Burden Suppression of Hawking Radiation and Neutrino Constraints on Primordial Black Holes

    hep-ph 2026-04 unverdicted novelty 5.0

    Memory-burden backreaction deforms the Hawking spectrum to suppress its high-energy tail, lowering total luminosity and neutrino flux by a factor set by a single suppression parameter and thereby relaxing IceCube boun...

  11. Limits on primordial black holes from the extragalactic gamma-ray background; current status and future projections

    astro-ph.HE 2026-06 unverdicted novelty 4.0

    Sets upper limits on primordial black hole dark matter fraction using extragalactic gamma-ray background, claiming these are the tightest indirect constraints for the mass range.

  12. Blue-tilted Runnings and the JWST Early Galaxy Tension

    astro-ph.CO 2026-05 unverdicted novelty 4.0

    Blue-tilted running spectrum with α_s ≈ 0.02 and β_s ≈ 0.02 resolves JWST early galaxy tension at 1σ in joint CMB analysis.

  13. Blue-tilted Runnings and the JWST Early Galaxy Tension

    astro-ph.CO 2026-05 unverdicted novelty 4.0

    A blue-tilted spectrum with running parameters α_s ≈ 0.2 and β_s ≈ 0.2 resolves the JWST early-galaxy abundance tension at 1σ in a joint CMB analysis.

  14. Constraints on Primordial Black Holes

    astro-ph.CO 2020-02 accept novelty 4.0

    Updated compilation shows PBHs are tightly constrained across 55 orders of magnitude in mass, ruling out dominant dark matter contributions except in narrow windows, with many limits carrying observational uncertainties.