A Brief Review on Primordial Black Holes as Dark Matter

Primordial black holes (PBHs) represent a natural candidate for one of the components of the dark matter (DM) in the Universe. In this review, we shall discuss the basics of their formation, abundance and signatures. Some of their characteristic signals are examined, such as the emission of particle...

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Veröffentlicht in:	Frontiers in astronomy and space sciences 2021-05, Vol.8
Hauptverfasser:	Villanueva-Domingo, Pablo, Mena, Olga, Palomares-Ruiz, Sergio
Format:	Artikel
Sprache:	eng
Schlagworte:	21 cm cosmology accretion cosmology dark matter gravitational waves primordial black holes
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Beschreibung
Zusammenfassung:	Primordial black holes (PBHs) represent a natural candidate for one of the components of the dark matter (DM) in the Universe. In this review, we shall discuss the basics of their formation, abundance and signatures. Some of their characteristic signals are examined, such as the emission of particles due to Hawking evaporation and the accretion of the surrounding matter, effects which could leave an impact in the evolution of the Universe and the formation of structures. The most relevant probes capable of constraining their masses and population are discussed.
ISSN:	2296-987X 2296-987X
DOI:	10.3389/fspas.2021.681084