@Article{MirandaShelChiaFerr:2018:NoCrCo,
author = "Miranda, Rodrigo A. and Shelin, Adriane B. and Chian, Abraham
Chian Long and Ferreira, Jos{\'e} L.",
affiliation = "{Universidade de Bras{\'{\i}}lia (UnB)} and {Universidade de
Bras{\'{\i}}lia (UnB)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Universidade de Bras{\'{\i}}lia (UnB)}",
title = "Non-Gaussianity and cross-scale coupling in interplanetary
magnetic field turbulence during a rope–rope magnetic reconnection
event",
journal = "Annales Geophysicae",
year = "2018",
volume = "36",
number = "2",
pages = "497--507",
month = "Mar.",
keywords = "Space plasma physics (turbulence).",
abstract = "In a recent paper (Chian et al., 2016) it was shown that magnetic
reconnection at the interface region between two magnetic flux
ropes is responsible for the genesis of interplanetary
intermittent turbulence. The normalized third-order moment
(skewness) and the normalized fourth-order moment (kurtosis)
display a quadratic relation with a parabolic shape that is
commonly observed in observational data from turbulence in fluids
and plasmas, and is linked to non-Gaussian fluctuations due to
coherent structures. In this paper we perform a detailed study of
the relation between the skewness and the kurtosis of the modulus
of the magnetic field vertical bar B vertical bar during a triple
interplanetary magnetic flux rope event. In addition, we
investigate the skewness-kurtosis relation of two-point
differences of vertical bar B vertical bar for the same event. The
parabolic relation displays scale dependence and is found to be
enhanced during magnetic reconnection, rendering support for the
generation of non-Gaussian coherent structures via rope-rope
magnetic reconnection. Our results also indicate that a direct
coupling between the scales of magnetic flux ropes and the scales
within the inertial subrange occurs in the solar wind.",
doi = "10.5194/angeo-36-497-2018",
url = "http://dx.doi.org/10.5194/angeo-36-497-2018",
issn = "0992-7689",
language = "en",
targetfile = "miranda_non.pdf",
urlaccessdate = "04 maio 2024"
}