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Very high-energy gamma rays from GRB 180720B and GRB 190829A with external Compton emission
Monica Barnard, Soebur Razzaque, Jagdish C. Joshi
Gamma-ray bursts (GRBs) comprise of short, bright, energetic flashes of emission from extragalactic sources followed by a longer afterglow phase of decreased brightness. Recent dis…
Interpreting the GeV-TeV Gamma-Ray Spectra of Local Giant Molecular Clouds using GEANT4 Simulation
Abhijit Roy, Jagdish C. Joshi, Martina Cardillo +1
Recently, the Fermi-LAT gamma-ray satellite has detected six Giant Molecular Clouds (GMCs) located in the Gould Belt and the Aquila Rift regions. In half of these objects (Taurus,…
Probing LHAASO Galactic PeVatrons through gamma-ray and neutrino correspondence
Prantik Sarmah, Sovan Chakraborty, Jagdish C. Joshi
Recently, Large High Altitude Air Shower Observatory (LHAASO) has detected several Galactic point sources of ultra high energy (UHE; TeV) gamma-rays. These gamma-rays ar…