气候变化领域集成服务门户(CCPortal): Kinetic-Scale Turbulence in the Venusian Magnetosheath

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DOI	10.1029/2020GL090783
	Kinetic-Scale Turbulence in the Venusian Magnetosheath
	Bowen T.A.; Bale S.D.; Bandyopadhyay R.; Bonnell J.W.; Case A.; Chasapis A.; Chen C.H.K.; Curry S.; Dudok de Wit T.; Goetz K.; Goodrich K.; Gruesbeck J.; Halekas J.; Harvey P.R.; Howes G.G.; Kasper J.C.; Korreck K.; Larson D.; Livi R.; MacDowall R.J.; Malaspina D.M.; Mallet A.; McManus M.D.; Page B.; Pulupa M.; Raouafi N.; Stevens M.L.; Whittlesey P.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:2
英文摘要	While not specifically designed as a planetary mission, NASA's Parker Solar Probe (PSP) mission uses a series of Venus gravity assists (VGAs) in order to reduce its perihelion distance. These orbital maneuvers provide the opportunity for direct measurements of the Venus plasma environment at high cadence. We present first observations of kinetic scale turbulence in the Venus magnetosheath from the first two VGAs. In VGA1, PSP observed a quasi-parallel shock, β ∼ 1 magnetosheath plasma, and a kinetic range scaling of k−2.9. VGA2 was characterized by a quasi-perpendicular shock with β ∼ 10, and a steep k−3.4 spectral scaling. Temperature anisotropy measurements from VGA2 suggest an active mirror mode instability. Significant coherent waves are present in both encounters at sub-ion and electron scales. Using conditioning techniques to exclude these electromagnetic wave events suggests the presence of developed sub-ion kinetic turbulence in both magnetosheath encounters. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Electromagnetic waves; Interplanetary flight; NASA; Orbits; Turbulence; Direct measurement; Magnetosheath plasma; Mode instabilities; Planetary mission; Plasma environments; Quasi-parallel shock; Quasi-perpendicular shocks; Temperature anisotropy; Kinetics; detection method; electromagnetic wave; measurement method; observational method; plasma; satellite mission; turbulence
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/169184
作者单位	Space Sciences Laboratory, University of California, Berkeley, CA, United States; Physics Department, University of California, Berkeley, CA, United States; Department of Astrophysical Sciences, Princeton University, Princeton, NJ, United States; Smithsonian Astrophysical Observatory, Cambridge, MA, United States; Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States; School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom; LPC2E, CNRS and University of Orléans, Orléans, France; School of Physics and Astronomy, University of Minnesota, Minneapolis, MN, United States; Planetary Magnetospheres Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States; Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, MI, United States; Astrophysical and Planetary Sciences Department, University of Colorado, Boulder, CO...
推荐引用方式 GB/T 7714	Bowen T.A.,Bale S.D.,Bandyopadhyay R.,et al. Kinetic-Scale Turbulence in the Venusian Magnetosheath[J],2021,48(2).
APA	Bowen T.A..,Bale S.D..,Bandyopadhyay R..,Bonnell J.W..,Case A..,...&Whittlesey P..(2021).Kinetic-Scale Turbulence in the Venusian Magnetosheath.Geophysical Research Letters,48(2).
MLA	Bowen T.A.,et al."Kinetic-Scale Turbulence in the Venusian Magnetosheath".Geophysical Research Letters 48.2(2021).