4 papers
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…
Matter- and magnetically-driven flavor conversion of neutrinos in magnetorotational collapses
Marco Manno, Pablo MartÃnez-Miravé, Irene Tamborra
The magnetorotational collapse of massive stars copiously emits neutrinos of all flavors, with a prominent hierarchy between the non-electron and electron flavor average energies.…
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…
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…