4 papers
Nanohertz gravitational waves from the baryon-dark matter coincidence
Alessia Musumeci, Jacopo Nava, Silvia Pascoli +1
The nanohertz gravitational waves (GW) observed by pulsar timing arrays may originate from a cosmological first-order phase transition (PT) at 100 MeV. Taking this possibili…
Diffuse astrophysical neutrinos from dark matter around blazars
Andrea Giovanni De Marchi, Alessandro Granelli, Jacopo Nava +1
Neutrinos from blazars can originate from inelastic scatterings between protons within their jets and sub-GeV dark matter (DM) around them, explaining IceCube detections of neutrin…
Boosted dark matter versus dark matter-induced neutrinos from single and stacked blazars
Andrea Giovanni De Marchi, Alessandro Granelli, Jacopo Nava +1
The physics responsible for the production of observed high-energy neutrinos have not been established so far, neither for the diffuse astrophysical ones nor for those detected fro…
511 keV Galactic Photons from a Dark Matter Spike
Pedro De la Torre Luque, Shyam Balaji, Malcolm Fairbairn +2
We propose that a dark matter (DM) spike around the Galactic Center's (GC) supermassive black hole, Sgr A*, could account for most of the bulge's measured 511 keV line intensity wh…