3 papers
astro-ph.CO2026
Primordial Asymmetries, Primordial Equation of State & Primordial Black Holes
Maël Gonin, Julien Froustey, Albert Escrivà +3
We study the thermal history of the primordial Universe in the presence of non-zero lepton and baryon asymmetries. Considering different scenarios, we determine the equation of sta…
astro-ph.CO2026
Primordial Black Holes as Cosmic Architects: Imprints of an extended mass function
Alberto Magaraggia, Nico Cappelluti, Günther Hasinger +2
Primordial black holes (PBHs) remain compelling dark-matter candidates and possible relics of early-Universe physics, with observable imprints across both cosmological structure fo…
astro-ph.CO2026
Implications for Primordial Black Hole Dark Matter from a Single Subsolar Mass Gravitational-wave Detection in LVK O1--O4
Alberto Magaraggia, Nico Cappelluti
The detection of sub-solar mass black holes is a milestone of modern astrophysics as it would open a window either onto new stellar physics or could potentially unveil the nature o…