Gamma-ray bursts have been one of the prime contenders for the astrophysical neutrinos seen by IceCube, yet counterpart searches were so far unsuccessful. To investigate the lack of detections, this thesis aims to place better constraints on these sources. This is achieved, firstly, by improving the locations, and thus spectral parameters, measured by the Fermi Gamma-ray Burst Monitor, and secondly, by testing the photospheric emission model for GRBs, which is found to perform significantly worse than optically-thin synchrotron emission.
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Gamma-ray bursts have been one of the prime contenders for the astrophysical neutrinos seen by IceCube, yet counterpart searches were so far unsuccessful. To investigate the lack of detections, this thesis aims to place better constraints on these sources. This is achieved, firstly, by improving the locations, and thus spectral parameters, measured by the Fermi Gamma-ray Burst Monitor, and secondly, by testing the photospheric emission model for GRBs, which is found to perform significantly wors...
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