411 citations · 5.1k across the 100 of their papers we have counts for
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Dark radiation constraints on light primordial black holes
Jérémy Auffinger, Alexandre Arbey, Pearl Sandick +2
Light black holes could have formed in the very early universe through the collapse of large primordial density fluctuations. These primordial black holes (PBHs), if light enough,…
Precision Calculation of Dark Radiation from Spinning Primordial Black Holes and Early Matter Dominated Eras
Alexandre Arbey, Jérémy Auffinger, Pearl Sandick +2
We present precision calculations of dark radiation in the form of gravitons coming from Hawking evaporation of spinning primordial black holes (PBHs) in the early Universe. Our ca…
Primordial Kerr Black Holes
Alexandre Arbey, Jérémy Auffinger, Joseph Silk
Primordial Black Holes (PBHs) are appealing candidates for dark matter in the universe but are severely constrained by theoretical and observational constraints. We will focus on t…
Cosmological scalar fields and Big-Bang nucleosynthesis
J. -F. Coupechoux, A. Arbey
The nature of dark matter and of dark energy which constitute more than of the energy in the Universe remains a great and unresolved question in cosmology. Cold dark matter…
Unifying dark matter, dark energy and inflation with a fuzzy dark fluid
A. Arbey, J. -F. Coupechoux
Scalar fields appear in many cosmological models, in particular in order to provide explanations for dark energy and inflation, but also to emulate dark matter. In this paper, we s…
Stellar Signatures of Inhomogeneous Big Bang Nucleosynthesis
Alexandre Arbey, Jérémy Auffinger, Joseph Silk
We evaluate abundance anomalies generated in patches of the universe where the baryon-to-photon ratio was locally enhanced by possibly many orders of magnitude in the range $η= 10^…