alpha-omega Effect and peculiarities of the 27-day variations of the galactic cosmic rays intensity, solar wind and solar activity parameters

作者：Gil A^*; Alania M V

来源：Advances in Space Research, 2013, 52(5): 951-956.

DOI：10.1016/j.asr.2013.05.022

• Solar dynamo
• Sun's differential rotation
• 27-Day variation of GCR

We show that the amplitudes of the 27-day variations of galactic cosmic ray (GCR) intensity, solar wind and solar activity parameters have a periodicity with duration of three to four Carrington rotation periods (3-4 CRP). We assume that the general reason for this phenomenon may be related to similar cyclicity of topological structure of the solar magnetic field lines created owing to the asymmetry of turbulent solar dynamo and solar differential rotation transforming the Sun's poloidal magnetic field to the toroidal (alpha-omega effect), and vice versa.

• 出版日期2013-9-1