Tag Archives: GRB

Talk: GRBs – Recent developments from Fermi

Peter Mészáros (PSU)
  • Are the photons from leptonic or hadronic origin?  X-ray to radio: leptonic, MeV: probably leptonic; GeV: debated.
  • GRBs are a possible origin for ultra-high energy cosmic rays.  For gravitational waves, theoretically but not detected yet.
  • GRB 080916c: Adbo+ (2009, Science, 323, 1688): GeV photons "lag" behind MeV photons.  Why?
  • (Jacob & Piran 2008): Quantum gravity?  Energy-dependent … Continue Reading ››