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Primordial Black Holes in Matter-Dominated Eras: the Role of Accretion

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arxiv 2112.02534 v2 pith:EB7LJL5L submitted 2021-12-05 astro-ph.CO gr-qchep-ph

Primordial Black Holes in Matter-Dominated Eras: the Role of Accretion

classification astro-ph.CO gr-qchep-ph
keywords accretionblackprimordialmatter-dominatederasholeholesonto
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We consider the role of secondary infall and accretion onto an initially overdense perturbation in matter-dominated eras, like the one which is likely to follow the end of inflation. We show that primordial black holes may form through post-collapse accretion, namely the accretion onto an initial overdensity whose collapse has not given rise to a primordial black hole. Accretion may be also responsible for the growth of the primordial black hole masses by orders of magnitude till the end of the matter-dominated era.

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Cited by 4 Pith papers

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

  1. Reviving primordial black hole formation in slow first-order phase transitions

    hep-ph 2026-05 unverdicted novelty 7.0

    Primordial black hole formation from slow first-order phase transitions remains viable if slow reheating after supercooling creates an early matter-dominated era allowing small overdensities to grow, producing black h...

  2. Imprint of domain wall annihilation on induced gravitational waves

    hep-ph 2026-04 unverdicted novelty 6.0

    Domain wall annihilation imprints a two-peaked spectrum on induced gravitational waves via an early matter-dominated phase and entropy dilution.

  3. $\tt BlackHawk$ $\tt v3.0$: 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.

  4. Reviving primordial black hole formation in slow first-order phase transitions

    hep-ph 2026-05 unverdicted novelty 5.0

    Slow reheating after a supercooled first-order phase transition allows an early matter-dominated era in which small curvature perturbations grow sufficiently to form primordial black holes.