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Gamma Ray Bursts (GRBs) have long been suspected as the sources for the ultra high-energy cosmic rays. For this to be true, a mechanism must exist within the GRB to produce hadrons, a consequence of which is the production of neutrinos. So far, no significant observation has been made that suggests GRBs produce neutrinos. The IceCube neutrino Observatory, a cubic kilometer ice Cherenkov detector at the South Pole has put stringent limits on the theoretical models predicting prompt GRB neutrino and cosmic ray production. Although no significant observation has yet been made, even a single high-energy neutrino event coincident in time and direction to a known GRB could constitute a discovery. As such, we have implemented a rapid data processing and analysis scheme that allows for detection of possible GRB coincident neutrino events, as well as for the ability to send alerts of such events to other observatories for follow up observations. In this poster we describe the data processing and analysis scheme, the sensitivity of current searches, and the mechanism in place to send alerts for future IceCube observations.

Online and Near Realtime Searches for Neutrinos from GRBs with IceCube