Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-06-05
Astronomy and Astrophysics
Astrophysics
18 pages, 8 figures, Invited paper presented at the ``Vulcano Workshop 2002'', Vulcano, Italy, 20-25 May, 2002
Scientific paper
Cosmological gamma ray bursts are very likely powerful sources of high energy neutrinos and gravitational waves. The aim of this paper is to review and update the current predictions about the intensity of emission in this two forms to be expected from GRB's. In particular a revised calculation of the neutrino emission by photohadronic interaction at the internal shock is obtained by numerical integration, including both the resonant and the hadronization channels. The detectability of gravitational waves from individual bursts could be difficult for presently planned detectors if the GRB's are beamed, but it is possible, as we have proposed in a paper two years ago, that the incoherent superimposition of small amplitude pulse trains of GW's impinging on the detector, could be detected as an excess of noise in the full VIRGO detector, integrating over a time of the order of one year.
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