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Galactic Center Radio Constraints on Gamma-Ray Lines from Dark Matter Annihilation
Ranjan Laha, Kenny Chun Yu Ng, Basudeb Dasgupta +1
Recent evidence for one or more gamma-ray lines at ~ 130 GeV in the Fermi-LAT data from the Galactic Center has been interpreted as a hint for dark matter annihilation to Zγ or Hγ…
Neutrinos in IceCube/KM3NeT as probes of Dark Matter Substructures in Galaxy Clusters
Basudeb Dasgupta, Ranjan Laha
Galaxy clusters are one of the most promising candidate sites for dark matter annihilation. We focus on dark matter with mass in the range 10 GeV - 100 TeV annihilating to muon pai…
Probing the Structure of Jet Driven Core-Collapse Supernova and Long Gamma Ray Burst Progenitors with High Energy Neutrinos
Imre Bartos, Basudeb Dasgupta, Szabolcs Marka
Times of arrival of high energy neutrinos encode information about their sources. We demonstrate that the energy-dependence of the onset time of neutrino emission in advancing rela…
Precise Relic WIMP Abundance and its Impact on Searches for Dark Matter Annihilation
Gary Steigman, Basudeb Dasgupta, John F. Beacom
If dark matter (DM) is a weakly interacting massive particle (WIMP) that is a thermal relic of the early Universe, then its total self-annihilation cross section is revealed by its…