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Constraints on planetary and asteroid-mass primordial black holes from continuous gravitational-wave searches

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arxiv 2110.06188 v2 pith:ZEI3YCEA submitted 2021-10-12 gr-qc astro-ph.HEastro-ph.IM

classification gr-qcastro-ph.HEastro-ph.IM
keywords blackprimordialconstraintsasteroid-massbinariesgravitational-waveholescontinuous
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

We present new constraints on the merging rates of planetary-mass and asteroid-mass primordial black hole binaries using limits on continuous waves(quasi-monochromatic, quasi-infinite duration signals) derived from an all-sky search for isolated compact objects in the first six months of the third observing run (O3a) of LIGO/Virgo. We calculate the merging rates of these binaries in a model-independent way, and convert them to constraints on the primordial black hole abundance with minimal modelling assumptions. Our results show that we are sensitive to sources at most $\mathcal{O}(10$ pc) away for systems with chirp masses of $\mathcal{O}(10^{-5}M_\odot)$ at gravitational-wave frequencies around 30-40 Hz. These results also show that continuous-wave searches could in the future directly probe the existence of planetary-mass and asteroid-mass primordial black holes, especially those in binaries with asymmetric mass ratios. Furthermore, they demonstrate that new methods accounting for the full nonlinear gravitational-wave frequency evolution are needed to improve constraints on primordial black holes.

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Cited by 5 Pith papers

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

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

    astro-ph.CO 2026-05 unverdicted novelty 6.0 of 10

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  3. $\tt GrayHawk$: A public code for calculating the Gray Body Factors of massless fields around spherically symmetric Black Holes

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    A new public Mathematica tool, GrayHawk, computes gray-body factors for massless spin 0, 1/2, 1, and 2 fields around seven spherically symmetric, asymptotically flat black hole metrics.

  4. Is the formation of primordial black holes from single-field inflation compatible with standard cosmology?

    astro-ph.CO 2024-12 conditional novelty 5.0 of 10

    Producing primordial black holes in single-field inflation typically forces more than about 55 e-folds after CMB-mode exit, conflicting with standard reheating unless the model is retuned or reheating is exotic.

  5. Applications of machine learning in gravitational wave research with current interferometric detectors

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    A community review of machine learning in current gravitational-wave detectors, mapping where ML already works in production (noise subtraction, glitch classification, low-latency classification) and where traditional...

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