Dresden 2013 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 86: Neutrinoastronomie 1

T 86.3: Vortrag

Montag, 4. März 2013, 11:35–11:50, HSZ-E03

Search for Astrophysical Point Sources with IceCube Using a Multipole Analysis — •Martin Leuermann, René Reimann, Max Scheel, Anne Schukraft, and Christopher Wiebusch — III. Physikalisches Institut, RWTH Aachen, D-52056 Aachen

The search for astrophysical point sources of high energy neutrinos is one of the key tasks the IceCube Neutrino Observatory was set up for. Beside the direct search looking for temporal or spatial clustering of measured neutrino directions, a multipole analysis is another promising method to detect a point source signal.

Therefor, the sky map of arrival directions is expanded in spherical harmonics. A large number of point sources, which individually are too weak to be detected, would leave a characteristic imprint on the spectrum of observed expansion coefficients. This talk presents the application of this analysis to the data taken with IceCube in its 79-string configuration.