Three dimensional solar anisotropy of galactic cosmic rays near the recent solar minimum 23/24

24th European Cosmic Ray Symposium

Modzelewska, R.^1 ; Alania, M.V.^1,2

Institute of Mathematics and Physics, Siedlce University, Poland^1

Institute of Geophysics, Tbilisi State University, Tbilisi, Georgia^2

关键词: Ecliptic plane;    Galactic cosmic rays;    Muon telescope;    Neutron monitors;    Quasi-periodicities;    Solar activity;    Threedimensional (3-d);    Two Dimensional (2 D);   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/632/1/012072/pdf
DOI  :  10.1088/1742-6596/632/1/012072

来源: IOP

【 摘 要 】

Three dimensional (3D) galactic cosmic ray (GCR) anisotropy has been studied for 2006-2012. The GCR anisotropy, both in the ecliptic plane and in polar direction, were obtained based on the neutron monitors (NMs) and Nagoya muon telescopes (MT) data. We analyze two dimensional (2D) GCR anisotropy in the ecliptic plane and north-south anisotropy normal to the ecliptic plane. We reveal quasi-periodicities - the annual and 27-days waves in the GCR anisotropy in 2006-2012. We investigate the relationship of the 27-day variation of the GCR anisotropy in the ecliptic plane and in the polar direction with the parameters of solar activity and solar wind.