Did NANOGrav See a Signal from Primordial Black Hole Formation?
Abstract
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.
- Publication:
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Physical Review Letters
- Pub Date:
- February 2021
- DOI:
- 10.1103/PhysRevLett.126.051303
- arXiv:
- arXiv:2009.07832
- Bibcode:
- 2021PhRvL.126e1303V
- Keywords:
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- Astrophysics - Cosmology and Nongalactic Astrophysics
- E-Print:
- 7 pages, 4 figures. Minor corrections, results unchanged