HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Conference papers

The Radial Dependence of Proton-scale Magnetic Spectral Break During PSP Encounter 2

Abstract : The proton-scale spectral break of magnetic field fluctuations is an important phenomenon in the solar wind. It is considered as the scale at which turbulent dissipation starts occurring and a transition to a kinetic turbulent cascade begins. In the cruise and encounter phases of its second orbit, Parker Solar Probe had enough resolution to continuously observe the radial dependence of the magnetic spectral break. This work reports observations of the proton-scale break near the Sun, and its evolution with solar radial distance (0.17~0.5 AU). We compare this to the plasma characteristic ion scales (proton gyroradius, proton inertial length, etc.), to relate the break to the possible mechanisms occurring at this scale. This analysis will help us to understand the origin and the development of the solar wind.
Document type :
Conference papers
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03562457
Contributor : Nathalie Pothier Connect in order to contact the contributor
Submitted on : Wednesday, February 9, 2022 - 7:26:29 AM
Last modification on : Tuesday, May 10, 2022 - 3:24:57 PM

Identifiers

Collections

Citation

D. Duan, T. A. Bowen, C. H. K. Chen, J. He, A. Mallet, et al.. The Radial Dependence of Proton-scale Magnetic Spectral Break During PSP Encounter 2. American Geophysical Union, 2019, San Francisco, United States. 15 pp. ⟨insu-03562457⟩

Share

Metrics

Record views

12