Primordial black holes and their gravitational-wave signatures
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Date
2025
Authors
Bagui, Eleni
Clesse, Sébastien
De Luca, Valerio
Ezquiaga, Jose María
Franciolini, Gabriele
García-Bellido, Juan
Joana, Cristian
Kumar Jain, Rajeev
Kuroyanagi, Sachiko
Musco, Ilia
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Volume Title
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Abstract
In the recent years, primordial black holes (PBHs) have emerged as one of the most interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could explain both some of the signals from binary black hole mergers observed in gravitational-wave detectors and an important component of the dark matter in the Universe. Significant progress has been achieved both on the theory side and from the point of view of observations, including new models and more accurate calculations of PBH formation, evolution, clustering, merger rates, as well as new astrophysical and cosmological probes. In this work, we review, analyze and combine the latest developments in order to perform end-to-end calculations of the various gravitational-wave signatures of PBHs. Different ways to distinguish PBHs from stellar black holes are emphasized. Finally, we discuss their detectability with LISA, the first planned gravitational-wave observatory in space.
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Keywords
black holes, primordial black holes, cosmology, gravitational waves, LISA, article
Citation
Primordial black holes and their gravitational-wave signatures / Eleni Bagui, Sébastien Clesse, Valerio De Luca, ... Olga Sergijenko [et al.] // Living Reviews in Relativity. - 2025. - Vol. 28. - Article number 1. - https://doi.org/10.1007/s41114-024-00053-w