Gamma-ray and neutrino diffuse emissions of the Galaxy above the TeV - AstrophysicsReport as inadecuate




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Abstract: In this contribution we will discuss recent results concerning the intensityand the angular distribution of the gamma-ray and neutrino emissions as shouldbe originated from the hadronic scattering of cosmic rays CR with theinterstellar medium ISM. We assumed that CR sources are supernova remnantsSNR and estimated the spatial distribution of primary nuclei by solvingnumerically the diffusion equation. For the ISM, we considered recent modelsfor the 3D spatial distributions of molecular hydrogen. Respect to previousresults, we find the secondary gamma-ray and neutrino emissions to be morepeaked along the galactic equator and in the galactic centre which improvessignificantly the perspectives of a positive detection. We compare ourpredictions with the experimental limits-observations by MILAGRO and TIBET forthe gamma-rays and by AMANDA-II for the neutrinos and discuss the detectionperspectives for a km3 neutrino telescope to be built in the North hemisphere.



Author: C. Evoli SISSA, D. Grasso INFN, Pisa, L. Maccione SISSA, and INFN, Trieste

Source: https://arxiv.org/







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