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NEUTRINOS FROM GAMMA-RAY BURSTS: PROPAGATION OF COSMIC RAYS IN THEIR HOST GALAXIES
Gamma-ray bursts (GRBs) are proposed as candidate sources of ultra-high-energy cosmic rays (UHECRs). We study the possibility that the PeV neutrinos recently observed by IceCube are produced by GRB cosmic rays interacting with the interstellar gas in the host galaxies. By studying the relation between the X-ray absorption column density …