HR: 17:05h
AN: SH34A-04 [Abstracts]
TI: Intermittent Properties of Solar Wind Fluctuations
AU: * Bruno, R
EM: roberto.bruno@ifsi-roma.inaf.it
AF: INAF-Istituto Fisica Spazio Interplanetario, Via Fosso del Cavaliere 100, Rome, RM 00133,
Italy
AU: Bavassano, B
EM: bruno.bavassano@ifsi-roma.inaf.it
AF: INAF-Istituto Fisica Spazio Interplanetario, Via Fosso del Cavaliere 100, Rome, RM 00133,
Italy
AU: D'Amicis, R
EM: raffaella.damicis@ifsi-roma.inaf.it
AF: INAF-Istituto Fisica Spazio Interplanetario, Via Fosso del Cavaliere 100, Rome, RM 00133,
Italy
AU: Carbone, V
EM: carbone@fis.unical.it
AF: Dipartimento di Fisica, Universita' della Calabria, Ponte P. Bucci, 31C, Rende, CS 87036,
Italy
AU: Sorriso-Valvo, L
EM: sorriso@fis.unical.it
AF: LICRYL INFM/CNR, Universita' della Calabria, Ponte P. Bucci, 31C, Rende, CS 87036, Italy
AB:
In this paper we offer a short review of the most significant non-Gaussian properties of solar wind fluctuations as
observed in interplanetary space. Several decades of in-situ observations of plasma and magnetic field
fluctuations have shown that the tails of their distributions do not follow a Gaussian statistics in the sense that the
strongest events have a probability to happen much stronger than that they would have if they were normally
distributed. Moreover, this feature becomes more and more evident as we observe shorter and shorter scales.
This behavior is commonly identified as "intermittent" within the context of MHD turbulence. Recent studies
focused on these intermittent events and tried to unravel their intrinsic nature and origin. It appears that the
intermittent component of interplanetary fluctuations is due to static structures, flux-tube like, advected by the wind
and possibly related to the complicate magnetic field topology existing at the base of the corona.
DE: 2134 Interplanetary magnetic fields
DE: 2149 MHD waves and turbulence (2752, 6050, 7836)
DE: 2164 Solar wind plasma
DE: 7839 Nonlinear phenomena (4400, 6944)
DE: 7863 Turbulence (4490)
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting