Skip to Main content Skip to Navigation
Conference papers

Solar wind turbulence at kinetic scales inside 1 AU: HELIOS revisited

Abstract : We use Search Coil Magnetometer data on Helios 1 in 1975 to study the radial evolution of solar wind magnetic field turbulence in the kinetic range, at scales smaller than the ion characteristic scales. Helios being a closest mission to Sun till date offers a unique opportunity to study turbulence in different regions of the inner Heliosphere. The magnetic spectra from 7Hz and up to 680 Hz has been studied. We see the signatures of quasi-parallel whistlers waves in the magnetic spectra at a fraction of the local electron cyclotron frequency. We relate the presence of whistlers and their evolution with radial distance to different physical parameters such as solar wind type, plasma beta and features of the electron distribution functions.
Document type :
Conference papers
Complete list of metadata
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Friday, February 11, 2022 - 3:05:06 PM
Last modification on : Thursday, May 12, 2022 - 3:46:07 AM
Long-term archiving on: : Thursday, May 12, 2022 - 6:48:02 PM


Publisher files allowed on an open archive


Distributed under a Creative Commons Attribution 4.0 International License



Vamsee Krishna Jagarlamudi, Olga Alexandrova, Thierry Dudok de Wit, Milan Maksimovic. Solar wind turbulence at kinetic scales inside 1 AU: HELIOS revisited. 20th EGU General Assembly, 2018, Vienne, Austria. pp.9438. ⟨insu-03566332⟩



Record views


Files downloads