From primordial black holes abundance to primordial curvature power spectrum (and back)
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/10/031
Abstract: In the model where Primordial Black Holes (PBHs) form from large primordial curvature (C) perturbations, i.e., CPBHs, constraints on PBH abundance provide in principle constraints on the primordial curvature power spectrum. This connection however depends… read more here.
Keywords: power spectrum; curvature power; curvature; primordial curvature ... See more keywords
Constraints on primordial curvature perturbations from primordial black hole dark matter and secondary gravitational waves
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/12/031
Abstract: Primordial black holes and secondary gravitational waves can be used to probe the small scale physics at very early time. For secondary gravitational waves produced after the horizon reentry, we derive an analytical formula for… read more here.
Keywords: gravitational waves; primordial black; primordial curvature; constraints primordial ... See more keywords
Probing the shape of the primordial curvature power spectrum and the energy scale of reheating with pulsar timing arrays
Sign Up to like & getrecommendations! Published in 2024 at "Chinese Physics B"
DOI: 10.1088/1674-1056/ad9a98
Abstract: Recent observations by pulsar timing array collaborations have detected a stochastic common-spectrum signal, which may originate from scalar-induced gravitational waves generated by primordial curvature perturbations during inflation. Using the NANOGrav 15-year data set, we explore… read more here.
Keywords: spectrum; pulsar timing; primordial curvature; power spectrum ... See more keywords