THE FIRST COMBINED SEARCH FOR NEUTRINO POINT-SOURCES IN THE SOUTHERN HEMISPHERE WITH THE ANTARES AND ICECUBE NEUTRINO TELESCOPES
THE FIRST COMBINED SEARCH FOR NEUTRINO POINT-SOURCES IN THE SOUTHERN HEMISPHERE WITH THE ANTARES AND ICECUBE NEUTRINO TELESCOPES
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DOI：
10.3847/0004-637x/823/1/65
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发表时间：
2016-05-20
影响因子：
4.9
通讯作者：
Zoll, M.
中科院分区：
文献类型：
--
作者：
Adrian-Martinez, S.;Albert, A.;Zoll, M.
我们给出了基于对Antares和IceCube中微子望远镜数据的首次联合分析，对中微子点状源的搜索结果。这两个探测器的大小和位置不同，它们的组合在南部天空形成了一个窗口，与单独的分析相比，对点源的灵敏度提高了多达2倍。利用Antares从2007年到2012年以及IceCube从2008年到2011年记录的数据，我们搜索了整个南方天空和预先选定的候选天体列表中的中微子发射源。在这些搜索中没有发现明显的超出背景的情况，并给出了不同能量截止值的E-2.5和E-2幂函数谱的候选源的通量上限。
We present the results of searches for point-like sources of neutrinos based on the first combined analysis of data from both the ANTARES and IceCube neutrino telescopes. The combination of both detectors, which differ in size and location, forms a window in the southern sky where the sensitivity to point sources improves by up to a factor of 2 compared with individual analyses. Using data recorded by ANTARES from 2007 to 2012, and by IceCube from 2008 to 2011, we search for sources of neutrino emission both across the southern sky and from a preselected list of candidate objects. No significant excess over background has been found in these searches, and flux upper limits for the candidate sources are presented for E-2.5 and E-2 power-law spectra with different energy cut-offs.