Inflationary Primordial Black Holes as All Dark Matter

By Keisuke Inomata, M. Kawasaki, K. Mukaida, Y. Tada, T. Yanagida. 2017

197 citations recorded by the source corpus.

Following a new microlensing constraint on primordial black holes (PBHs) with ∼1020–1028  g [H. Niikura et al., arXiv:1701.02151.], we revisit the idea of PBH as all dark matter (DM). We have shown that the updated observational constraints suggest the viable mass function for PBHs as all DM to have a peak at ≃1020  g with a small width σ≲0.1, by imposing observational constraints on an extended mass function in a proper way. We have also provided an inflation model that successfully generates PBHs as all DM fulfilling this requirement.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/8f5f86621d57bca0b61b48191ff6df6cf8cbbf04

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. Florian Kuhnel
2. A. Starobinsky
3. V. Sahni
4. Misao Sasaki
5. Guillem Domènech
6. B. Carr
7. Y. Gong
8. Chunshan Lin

In Nuclear and High Energy Physics

1. Florian Kuhnel
2. Misao Sasaki
3. V. Sahni
4. B. Carr
5. A. Starobinsky
6. Guillem Domènech
7. Y. Gong
8. F. Pedro

Citations in the corpus

• Primordial Black Holes as Dark Matter: Recent Developments (2020, background): “[28] argue that double inflation can produce a peak at around 10 g, while Clesse and Garćıa-Bellido [29] argue that hybrid inflation can produce a peak at around 10M .”
• Primordial black holes from a tiny bump/dip in the inflaton potential (2019, methodology): “In the Press-Schechter formalism [76], the mass fraction of PBHs at formation β(MPBH) for a given mass is defined as the probability that the Gaussian density contrast (or equivalently the Gaussian comoving curvature perturbation R or ζ), coarse-grained over the comoving Hubble scale R = 1/kPBH = 1/”
• Primordial black holes from string inflation (2018, background): “5) can be rewritten in terms of present day observables and in units of the solar mass M as [67, 68]:”
• Primordial black hole dark matter from single field inflation (2017, unknown): “with [48] ΩPBH(M) ΩDM = β(M) 8× 10−16 ( γ 0.”
• Generating PBHs and small-scale GWs in two-field models of inflation (2020, methodology): “We plot fPBH for the four examples in Figure 4 together with cosmological and astrophysical constraints [73].”
• Primordial black holes and second order gravitational waves from ultra-slow-roll inflation (2017, background): “However, it was shown that the mass window for PBH as all dark matter is around 1020g [19], or around 5× 10−16M , 2× 10−14M and 25–100M [26], so the mass window for PBH is narrow and needs further study.”
• Primordial Black Holes from Polynomial Potentials in Single Field Inflation (2017, unknown): “[6], the authors claimed that the PBHs can be all the dark matter for masses of order 10 20 g.”
• Mechanisms for primordial black hole production in string theory (2018, background): “Therefore, the fraction of PBH abundance in Dark Matter today can be determined by a simple red-shifting relation [71]”