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arXiv · 1903.07337

Detectability of Gravitational Waves from the Coalescence of Massive Primordial Black Holes with Initial Clustering

Qianhang Ding·Tomohiro Nakama·Joseph Silk·Yi Wang
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Abstract

We show that the effect of initial non-Gaussian clustering can significantly enhance the event rate for primordial black hole (PBH) coalescence. The impact of such clustering is studied in a specific scenario of multi-stream inflation. Initial clustering enables the possibility of detecting massive PBH coalescence by space-based gravitational wave interferometers such as LISA and DECIGO/BBO. The parameter regime for the ground-based detectors to detect PBH coalescence is also extended.

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Qianhang Ding, Tomohiro Nakama, Joseph Silk, Yi Wang. 2019-03-18. Detectability of Gravitational Waves from the Coalescence of Massive Primordial Black Holes with Initial Clustering. https://doi.org/10.1103/physrevd.100.103003

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