Cosmic ray anisotropies to 5 PeV
  Several large cosmic ray (CR) detectors have recently provided data on the
arrival directions of CR, which taken together with previous data recorded over
many decades allow the amplitgude and phase of the first harmonic to be derived
with reasonable precision and up to higher energies. We find a high degree of
consistency amongst the various measurements. The new data indicate that at an
energy above ~0.1 PeV a change of the CR anisotropy sets in. The amplitude of
the first harmonic, which rises to 3 TeV, then diminishes and begins to rise
again. The direction of the phase also changes to the opposite one. A measure
of understanding follows from the use of two-dimensional maps of CR excesses
over the mean background. When the energy of CR approaches the PeV region, the
excess of CR moves from the Galactic Anti-Centre to the opposite direction of
the Galactic Centre. The possible role of such potential CR sources as the
supernovae Monogem Ring and Vela, which could help to explain some of the
observed results, is discussed.
