Primordial Black Holes as Dark Matter: The Power Spectrum and Evaporation of Early Structures

By N. Afshordi, P. Mcdonald, D. Spergel. 2003

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We consider the possibility that massive primordial black holes are the dominant form of dark matter. Black hole formation adds a Poisson noise to the matter density fluctuations. We use Lyα forest observations to constrain this Poisson term, which constrains the black hole masses to be less than approximately a few times 104 M☉. We also find that structures with less than ~103 black holes evaporate by now.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/7de39463584143244e98b7cc9207cdeae23e2bf1

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Citations in the corpus

DESI and other Dark Energy experiments in the era of neutrino mass measurements (2013, background): “, other models of non-Gaussianity [168–184], warm dark matter [185– 187] or primordial black holes contributing to the power spectrum [188, 189] (for the latter two we would really like to have a better Lyα forest implementation).”
Primordial black holes as generators of cosmic structures (2018, methodology): “A. Lyman-α forest Afshordi et al. (2003) used observations of the Lyman-α forest to obtain an upper limit of about 104M on the mass of PBHs which provide the dark matter.”
The Linear Theory Power Spectrum from the Lyα Forest in the Sloan Digital Sky Survey (2004, background): “14 See http://www.cita.utoronto.ca/~pmcdonal/code.html. dark matter models (Narayanan et al. 2000) or primordial black hole models (Afshordi et al. 2003) (the code will produce a warning if a suspect power spectrum is input).”
Effect of Primordial Black Holes on the Cosmic Microwave Background and Cosmological Parameter Estimates (2007, methodology): “Dynamical constraints (Lacey & Ostriker 1985; Carr 1994; Moore 1993; Jin et al. 2005), effects on the matter power spectrum (Afshordi et al. 2003) and statistical studies of binary stars in the Galactic halo (Yoo et al. 2004), have been used to rule out PBHs more massive than 1000 M⊙ as main…”
Gravitational waves from a universe filled with primordial black holes (2020, background): “They may indeed constitute part or all of the dark matter [3], they may explain the generation of large-scale structures through Poisson fluctuations [4, 5], they may provide seeds for supermassive black holes in galactic nuclei [6, 7], and they may also account for the progenitors of the black-hole”
Formation of Supermassive Black Hole Seeds (2016, background): “Primordial black holes may have born during the early stages of Big Bang but there is no observational evidence for their existence (Alcock et al. 2000; Afshordi et al. 2003; Tisserand et al. 2007; Ricotti et al. 2008).”
Primordial black holes as dark matter candidates (2021, background): “The Poisson effect also influences the distribution of the Lyman-alpha forest [146,147].”
Two populations of LIGO-Virgo black holes (2020, methodology): “Other shaded regions in figure 5 show the constraints from microlensing results from EROS [79], OGLE [80], and MACHO [81], lensing of type Ia supernovae (SNe) [82], survival of a stars in dwarf galaxies (Seg I and Eri II) [83, 84], distribution of wide binaries (WB) [85], Lyman-α forest data [86, 87”
Growth of Structure Seeded by Primordial Black Holes (2006, background): “Specifically, we find that the product of the initial density parameter and the initial mass are constrained by mBH BH < mPS x ; ð23Þ where x is the factor by which the PBHs increase in mass via accretion and mPS is 104 M , the limit derived from Afshordi et al. (2003).”