Karlsruhe 2011 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 92: Neutrinoastronomie I

T 92.8: Vortrag

Montag, 28. März 2011, 18:30–18:45, 30.41: 105

Very high energy neutrino emission from starbursts galaxies — •Martino Olivo and Julia K. Becker — Ruhr-Universität Bochum, Fakultät für Physik und Astronomie, Theoretische Physik IV, 44801 Bochum (DE)

The enhanced production of neutrinos and γ-rays via inelastic proton-proton (p-p) scattering in hydrogen rich environments plays a key role in high-energy astrophysics. The large densities of molecular hydrogen inferred by recent detections of starburst galaxies at different wavelengths make them a promising candidate for the production of very high-energy (VHE) neutrinos. Here, the calculation of the expected neutrino fluxes from p-p interactions in two nearby starbursts, namely M82 and NGC253, is presented. A prediction for the stacked neutrino flux from nearby starbursts galaxies based on the assumption of a correlation between neutrino and infrared emission is discussed too. Prospects for future detection of VHE neutrinos from nearby starbursts using the first generation of cubic km sized telescopes like IceCube and KM3NeT are briefly summarized.