447 citations · 2.3k across the 29 of their papers we have counts for
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Embedded coherent structures from MHD to sub-ion scales in turbulent solar wind at 0.17 au
Alexander Vinogradov, Olga Alexandrova, Pascal Démoulin +6
We study intermittent coherent structures in solar wind magnetic turbulence from MHD to kinetic plasma scales using Parker Solar Probe data during its first perihelion (at 0.17 au)…
Coherent events at ion scales in the inner Heliosphere: \textit{Parker Solar Probe} observations during the first Encounter
Denise Perrone, Roberto Bruno, Raffaella D'Amicis +7
\textit{Parker Solar Probe} has shown the ubiquitous presence of strong magnetic field deflections, namely switchbacks, during its first perihelion where it was embedded in a highl…
The Solar Orbiter Science Activity Plan: translating solar and heliospheric physics questions into action
I. Zouganelis, A. De Groof, A. P. Walsh +182
Solar Orbiter is the first space mission observing the solar plasma both in situ and remotely, from a close distance, in and out of the ecliptic. The ultimate goal is to understand…
Three-dimensional local anisotropy of velocity fluctuations in the solar wind
Andrea Verdini, Roland Grappin, Olga Alexandrova +4
We analyse velocity fluctuations in the solar wind at magneto-fluid scales in two datasets, extracted from Wind data in the period 2005-2015, that are characterised by strong or we…
3D Anisotropy of Solar Wind Turbulence, Tubes, or Ribbons?
Andrea Verdini, Roland Grappin, Olga Alexandrova +1
We study the anisotropy with respect to the local magnetic field of turbulent magnetic fluctuations at magnetofluid scales in the solar wind. Previous measurements in the fast sola…
Observation of an MHD Alfvén vortex in the slow solar wind
Owen Wyn Roberts, Xing Li, Olga Alexandrova +1
In the solar wind, magnetic field power spectra usually show several power-laws. In this paper, magnetic field data from the Cluster mission during an undisturbed interval of slow…
Coherent events and spectral shape at ion kinetic scales in the fast solar wind turbulence
Sonny Lion, Olga Alexandrova, Arnaud Zaslavsky
In this paper we investigate spectral and phase coherence properties of magnetic fluctuations in the vicinity of the spectral transition from large, magnetohydrodynamic (MHD) to su…
Whistler mode waves and the electron heat flux in the solar wind: Cluster observations
Catherine Lacombe, Olga Alexandrova, Lorenzo Matteini +5
The nature of the magnetic field fluctuations in the solar wind between the ion and electron scales is still under debate. Using the Cluster/STAFF instrument, we make a survey of t…
Solar Wind Turbulence and the Role of Ion Instabilities
Olga Alexandrova, Christopher H. K. Chen, Luca Sorriso-Valvo +2
Solar wind is probably the best laboratory to study turbulence in astrophysical plasmas. In addition to the presence of magnetic field, the differences with neutral fluid isotropic…
Solar wind turbulent spectrum at plasma kinetic scales
Olga Alexandrova, Catherine Lacombe, Andre Mangeney +2
The description of the turbulent spectrum of magnetic fluctuations in the solar wind in the kinetic range of scales is not yet completely established. Here, we perform a statistica…