[Published November 10 2015]
The reason for this complementarity is due to a combination of the different locations and sizes of both detectors. IceCube is located in the Antarctic ice, whereas ANTARES was deployed in the Mediterranean Sea. In order to observe the Southern Sky, ANTARES can use the Earth as a filter against the huge background of atmospheric muons, which gives a better sensitivity for neutrino energies up to 100 TeV, particularly important for Galactic sources. On the other hand, IceCube, given its larger size, presents a better sensitivity beyond this energy, where the background of atmospheric muons is smaller.
In this analysis, the 2007-2012 data sample from the last ANTARES published point-source search and the 2007-2011 point-source data sample from IceCube have been used. The most significant cluster from the full Southern Sky search was found at equatorial coordinates α=332.8° and δ=-46.1, with a post-trial significance of 0.7sigma. A search over 40 pre-selected sources was also performed, with a post-trial significance of 1.2sigma for the most significant candidate source (HESSJ1741-302).
This is the first analysis which combines the data and the effort from both collaborations. Further analysis combining data from both detectors are planned in order to provide the best sensitivies for Galactic sources in the Southern Sky.