• Corpus ID: 237572342

Exploring the high-redshift PBH-$\Lambda$CDM Universe: early black hole seeding, the first stars and cosmic radiation backgrounds

  title={Exploring the high-redshift PBH-\$\Lambda\$CDM Universe: early black hole seeding, the first stars and cosmic radiation backgrounds},
  author={Nico Cappelluti and G. Hasinger and Priyamvada Natarajan Department of Physics and University of Miami and Inaf - Osservatorio Astronomico di Bologna and European Space Astronomy Centre and Department of Physics Astronomy and Yale University and Department of Engineering Physics and Black Hole Initiative and Harvard University},
We explore the observational implications of a model in which primordial black holes (PBHs) with a broad birth mass function ranging in mass from a fraction of a solar mass to ∼10 M , consistent with current observational limits, constitute the dark matter component in the Universe. The formation and evolution of dark matter and baryonic matter in this PBH-ΛCDM Universe are presented. In this picture, PBH DM mini-halos collapse earlier than in standard ΛCDM, baryons cool to form stars at z ∼ 15… 


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