Search for steady and flaring astrophysical neutrino point sources with the IceCube detector [Elektronische Ressource] / José Luis Bazo Alba. Gutachter: Elisa Bernardini ; Thomas K. Gaisser ; Hermann Kolanoski

Search for steady and flaring astrophysical neutrino pointsources with the IceCube detectorDISSERTATIONzur Erlangung des akademischen Gradesdoctor rerum naturalium(Dr. rer. nat.)im Fach Physikeingereicht an derMathematisch-Naturwissenschaftlichen Fakultät IHumboldt-Universität zu BerlinvonM.Sc. José Luis Bazo AlbaPräsident der Humboldt-Universität zu Berlin:Prof. Dr. Dr. h.c. Christoph MarkschiesDekan der Mathematisch-Naturwissenschaftlichen Fakultät I:Prof. Dr. Andreas HerrmannGutachter:1. Dr. Elisa Bernardini2. Prof. Dr. Thomas K. Gaisser3. Prof. Dr. Hermann Kolanoskieingereicht am: 10.06.2010Tag der mündlichen Prüfung: 30.08.2010AbstractHigh energy neutrino astronomy relies on the predictions of neu-trino fluxes coming from astrophysical objects, for example activegalactic nuclei. In these models, neutrinos and gamma-rays are pro-duced in hadronic processes, which require the acceleration of pro-tons to very high energies.Since neutrinos hardly interact and travel towards Earth undeflec-ted by magnetic fields, they can point back to their sources. IceCube,located at the South Pole, is a large volume detector for high energyneutrinos. In this work, data from two partial configurations of Ice-Cube (22 and 40 strings) are analyzed looking for neutrino point-likesources. The data cover 651 days, from 2007 to 2009, and consistmostly of atmospheric muon neutrinos in the Northern sky and highenergy atmospheric muons in the Southern sky.