Volumes and Issues  Contents of Issue 10

Ann. Geophys., 24, 2735-2741, 2006
www.ann-geophys.net/24/2735/2006/
© European Geosciences Union 2006

On the scaling of waiting-time distributions of the negative IMF B_z component

R. D'Amicis¹, R. Bruno¹, B. Bavassano¹, V. Carbone², and L. Sorriso-Valvo^3
1Istituto di Fisica dello Spazio Interplanetario (INAF), 00133 Roma, Italy
²Dipartimento di Fisica Università della Calabria, 87036 Rende (Cs), Italy
³Liquid Crystal Laboratory, INFM/CNR, 87030 Rende (Cs), Italy

Abstract. Statistics associated with the fluctuations in solar wind parameters show 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, which are important within the framework of the Sun-Earth connections, and briefly discuss the preliminary results. Data from several spacecrafts, covering different phases of the solar cycle and different radial distances, are used. We found that propagating Alfvénic fluctuations and convected structures strongly influence the statistics which vary from quasi-Poissonian to power law.

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Citation: D'Amicis, R., Bruno, R., Bavassano, B., Carbone, V., and Sorriso-Valvo, L.: On the scaling of waiting-time distributions of the negative IMF B_z component, Ann. Geophys., 24, 2735-2741, 2006.   Bibtex   EndNote   Reference Manager