Stellar mass primordial black holes as cold dark matter

• Tipo: Artigo em Revista Científica Internacional
• Data: 2020

Autores

Sobrinho, JLG (Autor) Outra; Augusto, P (Autor) FMUP

Revista

Título: Monthly Notices of the Royal Astronomical Society

Vol. 496

Páginas: 60-66

ISSN: 0035-8711

Editora: Oxford University Press

Indexação

ISI Web of Knowledge - 2 Citações

Scopus - 2 Citações

Outras Informações

ID Authenticus: P-00S-H27

DOI: 10.1093/mnras/staa1437

Abstract (EN): Primordial black holes (PBHs) might have formed in the early Universe due to the collapse of density fluctuations. PBHs may act as the sources for some of the gravitational waves recently observed. We explored the formation scenarios of PBHs of stellar mass, taking into account the possible influence of the QCD phase transition, for which we considered three different models: crossover model, bag model, and lattice fit model. For the fluctuations, we considered a running-tilt power-law spectrum; when these cross the similar to 10(-9)-10(-1)- s Universe horizon they originate 0.05-500 M-circle dot PBHs that could (i) provide a population of stellar mass PBHs similar to the ones present on the binaries associated with all-known gravitational wave sources and (ii) constitute a broad-mass spectrum accounting for similar to 76 per cent of all cold dark matter in the Universe.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7