Pith. sign in

REVIEW 9 cited by

Bayesian Evidence for Both Astrophysical and Primordial Black Holes: Mapping the GWTC-2 Catalog to Third-Generation Detectors

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2102.03809 v2 pith:OW7ZP7FC submitted 2021-02-07 astro-ph.CO gr-qchep-ph

Bayesian Evidence for Both Astrophysical and Primordial Black Holes: Mapping the GWTC-2 Catalog to Third-Generation Detectors

classification astro-ph.CO gr-qchep-ph
keywords astrophysicalprimordialblackmergersmodelscenariobayesiancatalog
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
Share X Bluesky LinkedIn Reddit HN
read the original abstract

We perform a hierarchical Bayesian analysis of the GWTC-2 catalog to investigate the mixed scenario in which the merger events are explained by black holes of both astrophysical and primordial origin. For the astrophysical scenario we adopt the phenomenological model used by the LIGO/Virgo collaboration and we include the correlation between different parameters inferred from data, the role of the spins in both the primordial and astrophysical scenarios, and the impact of accretion in the primordial scenario. Our best-fit mixed model has a strong statistical evidence relative to the single-population astrophysical model, thus supporting the coexistence of populations of black-hole mergers of two different origins. In particular, our results indicate that the astrophysical mergers account for roughly four times the number of primordial black hole events and predict that third-generation detectors, such as the Einstein Telescope and Cosmic Explorer, should detect up to hundreds of mergers from primordial black hole binaries at redshift $z\gtrsim30$.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 9 Pith papers

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

  1. Constraints on the Primordial Black Hole Abundance using Pulsar Parameter Drifts

    astro-ph.CO 2026-04 unverdicted novelty 8.0

    The first search for scalar-induced gravitational waves via pulsar parameter drifts yields f_PBH < 10^{-10} (95% CL) for PBH masses 0.3 to 4e4 solar masses, strongly disfavoring a primordial black hole origin for LVK ...

  2. Memoirs of the curvaton: non-perturbative non-Gaussianity and supermassive primordial black holes

    astro-ph.CO 2026-06 unverdicted novelty 6.0

    Curvaton self-interactions in non-quadratic potentials produce a local non-Gaussian map that enables supermassive primordial black hole formation at peak amplitudes of order 10^{-5} while remaining consistent with μ-d...

  3. Constraints on primordial black holes from the first part of LIGO-Virgo-KAGRA fourth observing run

    astro-ph.CO 2026-05 conditional novelty 6.0

    O4a gravitational-wave data give 95% CL upper limits f_PBH ~ 1e-2 to 1e-4 for monochromatic primordial black holes with mean masses 0.6-100 M_sun, with no evidence of a PBH merger component.

  4. Primordial Black Hole from Tensor-induced Density Fluctuation: First-order Phase Transitions and Domain Walls

    astro-ph.CO 2026-05 unverdicted novelty 6.0

    Tensor perturbations from first-order phase transitions and domain wall annihilation induce curvature fluctuations at second order that form primordial black holes, allowing asteroid-mass PBHs to comprise all dark mat...

  5. Running into tension: primordial black holes from ultra-slow-roll inflation, spectral running, and the Hubble tension

    astro-ph.CO 2026-06 unverdicted novelty 5.0

    EDE models increase inferred α_s from CMB data, strengthening tension with USR PBH models that predict negative running.

  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. Constraints on primordial black holes from the first part of LIGO-Virgo-KAGRA fourth observing run

    astro-ph.CO 2026-05 unverdicted novelty 5.0

    LIGO-Virgo-KAGRA O4a data yields the strongest constraints on primordial black hole abundance for 0.6-100 solar masses, with resolvable mergers dominating the limits and no compelling evidence for a PBH contribution i...

  8. Primordial Black Hole from Tensor-induced Density Fluctuation: First-order Phase Transitions and Domain Walls

    astro-ph.CO 2026-05 reject novelty 5.0

    Tensor perturbations from FOPT and domain-wall sources are claimed to induce second-order scalar perturbations large enough to form primordial black holes, potentially all of the dark matter.

  9. Science with the Einstein Telescope: a comparison of different designs

    gr-qc 2023-03 unverdicted novelty 3.0

    The paper evaluates how triangular versus two-L-shaped geometries, arm lengths, and presence of low-frequency instruments affect the science reach of the Einstein Telescope for compact binaries, multi-messenger events...