First Search for Point Sources of High Energy Cosmic Neutrinos with the ANTARES Neutrino Telescope
astro-ph.HE
/ Authors
Antares Collaboration, S. Adrián-Martínez, J. A. Aguilar, I. Al Samarai, A. Albert, M. André, M. Anghinolfi, G. Anton, S. Anvar, M. Ardid
and 146 more authors
A. C. Assis Jesus, T. Astraatmadja, J-J. Aubert, B. Baret, S. Basa, V. Bertin, S. Biagi, A. Bigi, C. Bigongiari, C. Bogazzi, M. Bou-Cabo, B. Bouhou, M. C. Bouwhuis, J. Brunner, J. Busto, F. Camarena, A. Capone, C. Carloganu, G. Carminati, J. Carr, S. Cecchini, Z. Charif, Ph. Charvis, T. Chiarusi
/ Abstract
Results are presented of a search for cosmic sources of high energy neutrinos with the ANTARES neutrino telescope. The data were collected during 2007 and 2008 using detector configurations containing between 5 and 12 detection lines. The integrated live time of the analyzed data is 304 days. Muon tracks are reconstructed using a likelihood-based algorithm. Studies of the detector timing indicate a median angular resolution of 0.5 +/- 0.1 degrees. The neutrino flux sensitivity is 7.5 x 10-8 ~ (E/GeV)^-2 GeV^-1 s^-1 cm^-2 for the part of the sky that is always visible (declination < -48 degrees), which is better than limits obtained by previous experiments. No cosmic neutrino sources have been observed.