First combined search for neutrino point-sources in the southern sky with the ANTARES and IceCube neutrino telescopes

A search for cosmic neutrino point-like sources using the ANTARES and IceCube neutrino telescopes over the Southern Hemisphere is presented. The ANTARES data were collected between January 2007 and December 2012, whereas the IceCube data ranges from April 2008 to May 2011. An unbinned maximum likeli...

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Bibliographic Details
Main Authors: Barrios-Martí, J., Finley, C.
Format: Conference Proceeding
Language:English
Subjects:
Maximum likelihood method
Neutrinos
Searching
Southern Hemisphere
Southern sky
Telescopes
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Summary:A search for cosmic neutrino point-like sources using the ANTARES and IceCube neutrino telescopes over the Southern Hemisphere is presented. The ANTARES data were collected between January 2007 and December 2012, whereas the IceCube data ranges from April 2008 to May 2011. An unbinned maximum likelihood method is used to search for a localized excess of muon events in the southern sky assuming an E−2 neutrino source spectrum. A search over a pre-selected list of candidate sources has also been carried out for different source assumptions: spectral indices of 2.0 and 2.5, and energy cutoffs of 1 PeV, 300 TeV and 100 TeV. No significant excess over the background has been found, and upper limits for the candidate sources are presented compared to the individual experiments.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201611604005