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Characterization of intermittent structures in the solar wind

Published online by Cambridge University Press:  06 January 2014

M. S. Nakwacki ,
M. E. Ruiz  and
S. Dasso
M. S. Nakwacki
Affiliation:
Instituto de Astronomía y Física del Espacio, CC 67, Suc. 28, CP 1428, CABA, Argentina email: [email protected] Departamento de Física, FCEyN, UBA, Argentina
M. E. Ruiz
Affiliation:
Instituto de Astronomía y Física del Espacio, CC 67, Suc. 28, CP 1428, CABA, Argentina email: [email protected] Departamento de Física, FCEyN, UBA, Argentina
S. Dasso
Affiliation:
Instituto de Astronomía y Física del Espacio, CC 67, Suc. 28, CP 1428, CABA, Argentina email: [email protected] Departamento de Física, FCEyN, UBA, Argentina
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Abstract

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The solar wind (SW) is a suitable natural scenario to study the intermittent nature of magnetohydrodynamic (MHD) turbulence for systems with low dissipation rate. In particular, nonlinear wave-wave interactions can be characterized by the degree of phase correlation and by departures from Gaussianity of the magnetic field. In this work, we study in situ observations of magnetic field intensity from the spacecraft ACE, which is located near one astronomical unit from the Sun, in the SW near Earth. We compute the phase coherence index analyzing two sets of observations, each one consisting of approximately three months during 2008 and 2012, respectively. From these sets of data we characterize intermittent features of the magnetic field intensity corresponding to a solar maximum and a solar minimum.

Keywords

Solar WindIntermittencyMagnetohydrodynamic turbulence
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S300: Nature of Prominences and their role in Space Weather , June 2013 , pp. 485 - 486
Copyright
Copyright © International Astronomical Union 2013 

References

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