Reconstruction of primordial power spectrum of curvature perturbation from the merger rate of primordial black hole binaries

Rampei Kimura, Teruaki Suyama, Masahide Yamaguchi, Ying Li Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

The properties of primordial curvature perturbations on small scales are still unknown while those on large scales have been well probed by the observations of the cosmic microwave background anisotropies and the large scale structure. In this paper, we propose the reconstruction method of primordial curvature perturbations on small scales through the merger rate of binary primordial black holes, which could form from large primordial curvature perturbation on small scales.

Original languageEnglish
Article number031
JournalJournal of Cosmology and Astroparticle Physics
Volume2021
Issue number4
DOIs
Publication statusPublished - 2021 Apr

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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