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Did NANOGrav see a signal from primordial black hole formation?
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Did NANOGrav see a signal from primordial black hole formation?
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We show that the recent NANOGrav result can be interpreted as a stochastic gravitational wave signal associated to formation of primordial black holes from high-amplitude curvature perturbations. The indicated amplitude and power of the gravitational wave spectrum agrees well with formation of primordial seeds for supermassive black holes.
Forward citations
Cited by 10 Pith papers
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Constraints on the Primordial Black Hole Abundance using Pulsar Parameter Drifts
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Gravitational Waves from Black Hole Reheating: The Scalar-Induced Component
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Angular momentum of vacuum bubbles in a first-order phase transition
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Memoirs of the curvaton: non-perturbative non-Gaussianity and supermassive primordial black holes
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...
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A non-perturbative framework for N-point functions of locally non-Gaussian fields
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Scalar induced gravitational waves review
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