气候变化领域集成服务门户(CCPortal): Plasma Double Layers at the Boundary Between Venus and the Solar Wind

CCPortal

DOI	10.1029/2020GL090115
	Plasma Double Layers at the Boundary Between Venus and the Solar Wind
	Malaspina D.M.; Goodrich K.; Livi R.; Halekas J.; McManus M.; Curry S.; Bale S.D.; Bonnell J.W.; de Wit T.D.; Goetz K.; Harvey P.R.; MacDowall R.J.; Pulupa M.; Case A.W.; Kasper J.C.; Korreck K.E.; Larson D.; Stevens M.L.; Whittlesey P.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:20
英文摘要	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. ©2020. The Authors.
英文关键词	Electric fields; Kinetics; Magnetosphere; Direct observations; Electric field structures; Induced magnetospheres; Inhomogeneous plasma; Kinetic plasmas; Magnetosheath plasma; Near-earth spaces; Potential drop; Solar wind; electric field; magnetosphere; plasma; solar wind; Venus; Venusia
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169566
作者单位	Department of Astrophysical and Planetary Sciences, University of Colorado Boulder, Boulder, CO, United States; Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States; Space Sciences Laboratory, University of California, Berkeley, CA, United States; Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States; Physics Department, University of California, Berkeley, CA, United States; LPC2E, CNRS, and University of Orléans, Orléans, France; School of Physics and Astronomy, University of Minnesota, Twin Cities, Minneapolis, MN, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, United States; Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, MI, United States
推荐引用方式 GB/T 7714	Malaspina D.M.,Goodrich K.,Livi R.,et al. Plasma Double Layers at the Boundary Between Venus and the Solar Wind[J],2020,47(20).
APA	Malaspina D.M..,Goodrich K..,Livi R..,Halekas J..,McManus M..,...&Whittlesey P..(2020).Plasma Double Layers at the Boundary Between Venus and the Solar Wind.Geophysical Research Letters,47(20).
MLA	Malaspina D.M.,et al."Plasma Double Layers at the Boundary Between Venus and the Solar Wind".Geophysical Research Letters 47.20(2020).