Speaker
Dr
Imre Bartos
(Columbia University)
Description
Jet reheating via nuclear collisions has recently been proposed as the main
mechanism for gamma-ray burst (GRB) emission. In addition to producing the
observed gamma rays, collisional heating must generate 10–100 GeV neutrinos,
implying a close relation between the neutrino and gamma-ray luminosities. We
exploit this theoretical relation to make predictions for possible GRB detections
by IceCube+DeepCore. To estimate the expected neutrino signal, we use the
largest sample of bursts observed by the Burst and Transient Source Experiment
in 1991–2000. GRB neutrinos could have been detected if IceCube+DeepCore
operated at that time. Detection of 10–100 GeV neutrinos would have significant
implications, shedding light on the composition of GRB jets and their Lorentz
factors. This could be an important target in designing future upgrades of the
IceCube+DeepCore observatory.
Author
Dr
Imre Bartos
(Columbia University)
