SOME ASPECTS OF WAITING TIME STATISTICS OF INTERPLANETARY MAGNETIC FIELD FLUCTUATIONS: FOCUSING ON B_s

摘要

Statistics associated with fluctuations of solar wind parameters shows a remarkable dependence on the solar activity phase. In particular, we focus our attention on the waiting time statistics governing the MHD fluctuations of the z component of the interplanetary magnetic field and briefly discuss preliminary results and possible implications within the framework of Sun-Earth connection. Data from several spacecrafts, covering different phases of solar cycle, are used. We found that propagating Alfvenic fluctuations and convected coherent structures strongly influence the statistics which varies from quasi Poissonian to power law.