3 papers
astro-ph.HE2026
Unveiling Neutrino Nature with the Diffuse Supernova Background
Marco Manno, Pablo Martínez-Miravé, Irene Tamborra
The true nature of neutrinos--whether Dirac or Majorana--is a foundational, unresolved question. We demonstrate that the diffuse supernova neutrino background (DSNB) offers an unta…
astro-ph.CO2025
Multimessenger Constraints on Supermassive Dark Stars and Their Black Hole Remnants
Marco Manno, Thomas Schwemberger, Volodymyr Takhistov
Dark matter (DM) annihilation can power the first generation of stars as long lived dark stars (DSs) that grow to supermassive scales and event…
astro-ph.CO2025
ALP production from light primordial black holes: The role of superradiance
Marco Manno, Daniele Montanino
Light primordial black holes (LPBHs) with masses in the range ~g~~g, although they evaporate before Big Bang Nucleosynthesis, can play a significant…