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'Observing Dissipation Scale Dynamics of the Inner Heliosphere with Merged Search Coil and Fluxgate Magnetometer Measurements'

Authors :
Bowen, T. A.
Mallet, A.
Chen, C. H. K.
Klein, K. G.
Duan, D.
Mcmanus, M.
Vech, D.
Bale, S. D.
Dudok de Wit, Thierry
Salem, C. S.
Malaspina, D.
Bonnell, J. W.
Macdowall, R. J.
Pulupa, M.
Goetz, K.
Goodrich, K.
Larson, D. E.
Harvey, P.
Whittlesey, P. L.
Livi, R.
Case, A. W.
Korreck, K. E.
Stevens, M. L.
Kasper, J. C.
POTHIER, Nathalie
Publication Year :
2019
Publisher :
HAL CCSD, 2019.

Abstract

The Parker Solar Probe (PSP) mission serves as an opportunity to understand the connection between turbulent dissipation and particle heating and solar wind acceleration. Though inherently connected to plasma kinetic scales, the physical dynamics and in-situ observational signatures of dissipation typically depend on macroscale properties of the mean magnetic field. In order to observe anisotropic characteristics of magnetic field fluctuations at inertial and dissipation scales, a merged dataset consisting of fluxgate and search-coil magnetometer measurements has been developed for PSP/FIELDS. This work reports first observations from the PSP merged magnetic field data, focusing on anisotropic properties of dissipation scale phenomena: coherent electromagnetic ion cyclotron waves, spectral power distributions, intermittency, and magnetic helicity. Analyzing these observational signatures at kinetic scales will largely constrain the physical processes responsible for coronal heating and solar wind acceleration.

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.od.......166..cd8d31faf516a396967c161797b76800