Observation of an Anisotropy in the Galactic Cosmic Ray arrival direction at 400 TeV with IceCube Vrije Universiteit Brussel
In this paper we report the first observation in the Southern hemisphere of an energy dependence in the Galactic cosmic ray anisotropy up to a few hundred TeV. This measurement was performed using cosmic ray induced muons recorded by the partially deployed IceCube observatory between May 2009 and May 2010. The data include a total of 33×109 muon events with a median angular resolution of ?3? degrees. A sky map of the relative intensity in ...