Journal article
Plasma Double Layers at the Boundary between Venus and the Solar Wind
Geophysical research letters, Vol.Accepted Manuscript(20), pp.e2020GL090115-n/a
10/28/2020
DOI: 10.1029/2020GL090115
PMCID: PMC7757269
PMID: 33380758
Abstract
The solar wind is slowed, deflected, and heated as it encounters Venus's induced magnetosphere. The importance of kinetic plasma processes to these interactions has not been examined in detail, due to a lack of constraining observations. In this study, kinetic‐scale electric field structures are identified in the Venusian magnetosheath, including plasma double layers. The double layers may be driven by currents or mixing of inhomogeneous plasmas near the edge of the magnetosheath. Estimated double layer spatial scales are consistent with those reported at Earth. Estimated potential drops are similar to electron temperature gradients across the bow shock. Many double layers are found in few high cadence data captures, suggesting that their amplitudes are high relative to other magnetosheath plasma waves. These are the first direct observations of plasma double layers beyond near‐Earth space, supporting the idea that kinetic plasma processes are active in many space plasma environments.
Details
- Title: Subtitle
- Plasma Double Layers at the Boundary between Venus and the Solar Wind
- Creators
- D.M. Malaspina - University of Colorado BoulderK. Goodrich - University of California, BerkeleyR. Livi - University of California, BerkeleyJ. Halekas - University of IowaM. Mcmanus - University of California, BerkeleyS. Curry - University of California, BerkeleyS.D. Bale - University of California, BerkeleyJ.W. Bonnell - University of California, BerkeleyThierry Dudok de Wit - Laboratoire de Physique et Chimie de l'Environnement et de l'EspaceK. Goetz - University of MinnesotaP.R HarveyR.J Macdowall - Goddard Space Flight CenterMarc Pulupa - University of California, BerkeleyA.W. Case - Center for Astrophysics Harvard & SmithsonianJ.C. Kasper - University of MichiganK.E. Korreck - Center for Astrophysics Harvard & SmithsonianD. Larson - University of California, BerkeleyM.L. StevensonP. Whittlesey - University of California, Berkeley
- Resource Type
- Journal article
- Publication Details
- Geophysical research letters, Vol.Accepted Manuscript(20), pp.e2020GL090115-n/a
- DOI
- 10.1029/2020GL090115
- PMID
- 33380758
- PMCID
- PMC7757269
- NLM abbreviation
- Geophys Res Lett
- ISSN
- 0094-8276
- eISSN
- 1944-8007
- Publisher
- American Geophysical Union
- Grant note
- DOI: 10.13039/100000104, name: National Aeronautics and Space Administration, award: NNN06AA01C
- Language
- English
- Date published
- 10/28/2020
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984428795802771
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