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Observation of Anisotropy in the Arrival Directions of Galactic Cosmic Rays at Multiple Angular Scales with IceCube

Abstract:

Between May 2009 and May 2010, the IceCube neutrino detector at the South Pole recorded 32 billion muons generated in air showers produced by cosmic rays with a median energy of 20 TeV. With a data set of this size, it is possible to probe the southern sky for per-mille anisotropy on all angular scales in the arrival direction distribution of cosmic rays. Applying a power spectrum analysis to the relative intensity map of the cosmic ray flux in the southern hemisphere, we show that the arriva...

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Publication status:
Published

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Publisher copy:
10.1088/0004-637X/740/1/16

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Journal:
ApJ
Volume:
740
Issue:
1
Pages:
16
Publication date:
2011-05-11
DOI:
EISSN:
1538-4357
ISSN:
0004-637X
URN:
uuid:3681d404-f3f6-4b47-b196-d7b1516b60da
Source identifiers:
216162
Local pid:
pubs:216162
Keywords:

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