| Title: |
Mediation of collisionless turbulent dissipation through cyclotron resonance |
| Authors: |
Bowen, Trevor, A; Bale, Stuart, D; Chandran, Benjamin, D G; Chasapis, Alexandros; Chen, Christopher, H K; Dudok de Wit, Thierry; Mallet, Alfred; Meyrand, Romain; Squire, Jonathan |
| Contributors: |
Space Sciences Laboratory Berkeley (SSL); University of California Berkeley (UC Berkeley); University of California (UC)-University of California (UC); University of New Hampshire (UNH); University of Colorado Boulder; Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E); Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES) |
| Source: |
EISSN: 2397-3366 ; Nature Astronomy ; https://insu.hal.science/insu-04459447 ; Nature Astronomy, 2024, ⟨10.1038/s41550-023-02186-4⟩ |
| Publisher Information: |
CCSD; Nature Publishing Group |
| Publication Year: |
2024 |
| Collection: |
Université d'Orléans: HAL |
| Subject Terms: |
[SDU]Sciences of the Universe [physics] |
| Description: |
International audience ; Abstract The dissipation of turbulence in astrophysical systems is fundamental to energy transfer and heating in environments ranging from the solar wind and corona to accretion disks and the intracluster medium. Although turbulent dissipation is relatively well understood in fluid dynamics, astrophysical plasmas often exhibit exotic behaviour, arising from the lack of interparticle collisions, which complicates turbulent dissipation and heating in these systems. Recent observations by NASA’s Parker Solar Probe mission in the inner heliosphere have shed new light on the role of ion cyclotron resonance as a potential candidate for turbulent dissipation and plasma heating. Here, using in situ observations of turbulence and wave populations, we show that ion cyclotron waves provide a major pathway for dissipation and plasma heating in the solar wind. Our results support recent theoretical predictions of turbulence in the inner heliosphere, known as the helicity barrier, that suggest a role of cyclotron resonance in ion-scale dissipation. Taken together, these results provide important constraints for turbulent dissipation and acceleration efficiency in astrophysical plasmas. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1038/s41550-023-02186-4 |
| Availability: |
https://insu.hal.science/insu-04459447; https://insu.hal.science/insu-04459447v1/document; https://insu.hal.science/insu-04459447v1/file/s41550-023-02186-4.pdf; https://doi.org/10.1038/s41550-023-02186-4 |
| Rights: |
info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.70220A87 |
| Database: |
BASE |