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Constraining burdened PBHs with gravitational waves

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arxiv 2409.05953 v2 pith:AJUQDRDB submitted 2024-09-09 gr-qc astro-ph.COhep-ph

Basabendu Barman , Kousik Loho , Óscar Zapata This is my paper · ORCID
classification gr-qcastro-ph.COhep-ph
keywords pbhsburdenburdenedconstraintsgravitationalmemoryprimordialarising
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

We investigate the implications of memory burden on the gravitational wave (GW) spectrum arising from the Hawking evaporation of light primordial black holes (PBHs). By considering both rotating (Kerr) and non-rotating (Schwarzschild) PBHs, we demonstrate that the overproduction of primordial GWs from burdened PBHs could impose stringent constraints on the parameters governing backreaction effects. These constraints, derived from $\Delta N_{\rm eff}$ measurements by Planck and prospective experiments such as CMB-S4 and CMB-HD, offer novel insights into the impact of memory burden on PBH dynamics.

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Cited by 7 Pith papers

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

  1. Black Hole Memory Burden and its Signatures in Gravitational Waves from Mergers

    gr-qc 2026-07 conditional novelty 6.0 of 10

    Swift memory burden shifts black-hole quasinormal-mode frequencies by an amount set by the memory-load parameter μ and critical exponent p, with μ able to exceed the progenitor's information content.

  2. The fast, the slow and the merging: probes of evaporating memory burdened PBHs

    hep-ph 2025-06 conditional novelty 6.0 of 10

    Diffuse gamma-ray and neutrino data, plus CMB ionization limits, constrain the memory-burden parameters k, q, and delta for primordial black holes and narrow viable dark matter masses to a broad but testable window.

  3. Axion misalignment with memory-burdened PBH

    hep-ph 2025-01 conditional novelty 6.0 of 10

    Axion dark matter parameter space shifts dramatically when kinetic misalignment and memory-burdened primordial black hole evaporation are combined.

  4. Impact of memory-burdened black holes on primordial gravitational waves in light of Pulsar Timing Array

    astro-ph.CO 2024-11 conditional novelty 6.0 of 10

    Memory-burdened primordial black holes can explain pulsar timing array data as diluted blue-tilted gravitational waves and leave a testable high-frequency signal.

  5. Micro Black Hole Dark Matter

    hep-th 2025-06 conditional novelty 5.0 of 10

    Micro black holes could survive as dark matter down to 10^{-5} Planck masses if extra dimensions or many species strengthen the memory-burden suppression of their evaporation.

  6. New bounds on Memory Burdened Primordial Black Holes from Big Bang Nucleosynthesis

    astro-ph.CO 2025-06 reject novelty 4.0 of 10

    Memory-burdened primordial black holes lighter than 10^9 grams are newly constrained by Big Bang nucleosynthesis, with a residual unconstrained window around 1-100 grams for suppression index k=2.

  7. Asymmetries from a charged memory-burdened PBH

    hep-ph 2024-12 reject novelty 3.0 of 10

    A parameter-space scan shows that very large curvature-current couplings can fit the baryon asymmetry and dark matter abundance, while the electric charge of the black hole plays no role in the mechanism.

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