194 citations · 656 across the 15 of their papers we have counts for
8 papers · 1 filter
Primordial black hole constraints with Hawking radiation -- a review
Jérémy Auffinger
Primordial black holes are under intense scrutiny since the detection of gravitational waves from mergers of solar-mass black holes in 2015. More recently, the development of numer…
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…
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^…
Constraining primordial black hole masses with the isotropic gamma ray background
Alexandre Arbey, Jérémy Auffinger, Joseph Silk
Primordial black holes can represent all or most of the dark matter in the window g. Here we present an extension of the constraints on PBHs of masses $10^{13}-1…
Evolution of primordial black hole spin due to Hawking radiation
Alexandre Arbey, Jérémy Auffinger, Joseph Silk
Near extremal Kerr black holes are subject to the Thorne limit in the case of thin disc accretion, or some generalized version of this in other disc geometr…
AlterBBN v2: A public code for calculating Big-Bang nucleosynthesis constraints in alternative cosmologies
A. Arbey, J. Auffinger, K. P. Hickerson +1
We present the version 2 of AlterBBN, an open public code for the calculation of the abundance of the elements from Big-Bang nucleosynthesis. It does not rely on any closed externa…