High Energy Neutrino Flash From Far-UV/X-Ray Flares of Gamma-Ray Bursts

Murase, Kohta ; /Kyoto U., Yukawa Inst., Kyoto ; Nagataki, Shigehiro ; /Kyoto U., Yukawa Inst., Kyoto /KIPAC, Menlo Park

Stanford Linear Accelerator Center

关键词: Photons;    Neutrinos;    Efficiency;    Production;    Pions;   

DOI  :  10.2172/881789
RP-ID  :  SLAC-PUB-11838
RP-ID  :  AC02-76SF00515
RP-ID  :  881789

美国|英语

来源: UNT Digital Library

【 摘 要 】

The recent observations of bright optical and X-ray flares by the Swift satellite suggest these are produced by the late activities of the central engine. We study the neutrino emission from far-UV/X-ray flares under the late internal shock model. Since the efficiency of pion production in the highest energy is higher than that of the prompt bursts, such neutrino flashes from flares can give comparable or larger contributions to a diffuse very high energy neutrino background if the total energy input into flares is comparable to the radiated energy of the prompt bursts. These signals are very important because they have possibility to probe the nature of flares (baryonic or magnetic, the photon field, the magnetic field, and so on).