Heliolatitudinal dependence of cosmic-ray anisotropy

Details Heliolatitudinal dependence of cosmic-ray anisotropy Heliolatitudinal dependence of cosmic-ray anisotropy

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006astl...32..574k&link_type=abstract

Astronomy Letters, vol. 32, Issue 8, p.574-576

Astronomy and Astrophysics

Astronomy

Pacs Numbers 94.20.Wq

Scientific paper

We analyze the heliolatitudinal dependence of the cosmic-ray anisotropy using data from the Yakutsk complex of muon telescopes on the ground and underground at depths of 7, 20, and 60 m w. e. for 1972 2002. The radial cosmic-ray anisotropy component during this period at all recording levels is shown to have been systematically enhanced southward from the helioequator irrespective of the polarity of the general solar magnetic field. The azimuthal anisotropy component depends on heliolatitude only at negative polarity of the general solar magnetic field; it increases northward from the helioequator. Such a situation can take place in the case of interaction of the fast solar wind from coronal holes with the slow wind in the northern part of the heliosphere and continuous particle removal in its southern part.

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