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Abundance of primordial black holes with local non-Gaussianity in peak theory

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arxiv 1906.06790 v3 pith:C6L4AT7Y submitted 2019-06-16 astro-ph.CO gr-qc

Abundance of primordial black holes with local non-Gaussianity in peak theory

classification astro-ph.CO gr-qc
keywords non-gaussianityabundancelocalpeaktheoryblackeffectholes
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We discuss the effect of local type non-Gaussianity on the abundance of primordial black holes (PBH) based on the peak theory. We provide the PBH formation criterion based on the so-called compaction function and use the peak theory statistics associated with the curvature perturbation with the local type non-Gaussianity. Providing a method to estimate the PBH abundance, we demonstrate the effects of non-Gaussianity. It is explicitly shown that the value of non-linear parameter $|f_{\rm NL}| \sim 1$ induces a similar effect to a few factors of difference in the amplitude of the power spectrum.

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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. The statistics of curvature-profile dispersion in primordial black hole formation

    astro-ph.CO 2026-07 conditional novelty 7.0

    Rare coherent shape deformations of primordial curvature profiles can dominate primordial black hole abundance by lowering the collapse threshold enough to overcome their Gaussian statistical cost.

  2. Reheating as a variational probe of cosmological observables

    astro-ph.CO 2026-06 unverdicted novelty 6.0

    Reheating is formulated as a regularized variational problem in equation-of-state space whose extremal histories are selected by different cosmological observables.

  3. Isotropy, anisotropies and non-Gaussianity in the scalar-induced gravitational-wave background: diagrammatic approach for primordial non-Gaussianity up to arbitrary order

    astro-ph.CO 2025-05 unverdicted novelty 6.0

    Extends diagrammatic approach for scalar-induced gravitational waves to arbitrary-order local PNG, deriving semi-analytic spectra for energy density, anisotropies, bispectrum and trispectrum up to quartic terms.

  4. Scalar induced gravitational waves review

    gr-qc 2021-09 unverdicted novelty 2.0

    A review that unifies analytical expressions for scalar-induced gravitational waves and emphasizes calculations for non-radiation-dominated cosmologies.