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Did NANOGrav See a Signal from Primordial Black Hole Formation?

Ville Vaskonen and Hardi Veermäe
Phys. Rev. Lett. 126, 051303 – Published 5 February 2021
Physics logo See Research News: Cosmic Ringtones in Pulsar Data?

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.

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  • Received 17 September 2020
  • Accepted 18 January 2021

DOI:https://doi.org/10.1103/PhysRevLett.126.051303

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

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Authors & Affiliations

Ville Vaskonen1,* and Hardi Veermäe2,†

  • 1Institut de Fisica dAltes Energies, The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Barcelona, Spain
  • 2National Institute of Chemical Physics and Biophysics, Rävala 10, 10143 Tallinn, Estonia

  • *vvaskonen@ifae.es
  • hardi.veermae@cern.ch

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Issue

Vol. 126, Iss. 5 — 5 February 2021

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