The Solar Activity Cycle is Weakly Synchronized with the Solar Inertial Motion

Milan Palus
Institute of Computer Science, Academy of Sciences of the Czech Republic
Pod vodárenskou vezí 2, 182 07 Prague 8, Czech Republic
E-mail: mp@cs.cas.cz

Jurgen Kurths, Udo schwarz, Norbert Seehafer
Department of Physics, Potsdam University, Am Neuen Palais 10, D-14469 Potsdam, Germany

Dagmar Novotna
Institute of Atmospheric Physics, Academy of Sciences of the Czech Republic
Bocni II/1401, 141 31 Prague 4, Czech Republic
E-mail: nov@ufa.cas.cz

Ivanka Charvatova
Institute of Geophysics, Academy of Sciences of the Czech Republic
Bocni II/1401, 141 31 Prague 4, Czech Republic

Abstract:

We study possible interrelations between the 300 year record of the yearly sunspot numbers and the solar inertial motion (SIM) using the recently developed technique of synchronization analysis. Phase synchronization of the sunspot cycle and the SIM is found and statistically confirmed in three epochs (1734-1790, 1855-1875 and 1907-1960) of the whole period 1700-2000. These results give quantitative support to the hypothesis that there is a weak interaction between the solar activity and the SIM.