Structure of the lunar wake: Two-dimensional global hybrid simulations
Result description
We study the structure and properties of the lunar wake with these solar wind parameters: the angle sw between directions of the solar wind velocity v sw and the ambient interplanetary magnetic field (IMF) B sw = 45° and 90° and v sw = 6v A (where v A denotes solar wind Alfvén velocity). We examine the structure of the wake-tail formed behind the obstacle. In agreement with in situ observations the lunar wake is formed by two counterstreaming beams which fill the wake with a relatively cold, inhomogeneous and highly anisotropic plasma. The results of this study suggest that for given solar wind conditions the downstream region of the lunar wake is dominated by electromagnetic turbulence with the frequencies near the local proton gyrofrequency. The properties and possible generating mechanisms of the low-frequency electromagnetic turbulence are discussed.
Keywords
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Structure of the lunar wake: Two-dimensional global hybrid simulations
Original language description
We study the structure and properties of the lunar wake with these solar wind parameters: the angle sw between directions of the solar wind velocity v sw and the ambient interplanetary magnetic field (IMF) B sw = 45° and 90° and v sw = 6v A (where v A denotes solar wind Alfvén velocity). We examine the structure of the wake-tail formed behind the obstacle. In agreement with in situ observations the lunar wake is formed by two counterstreaming beams which fill the wake with a relatively cold, inhomogeneous and highly anisotropic plasma. The results of this study suggest that for given solar wind conditions the downstream region of the lunar wake is dominated by electromagnetic turbulence with the frequencies near the local proton gyrofrequency. The properties and possible generating mechanisms of the low-frequency electromagnetic turbulence are discussed.
Czech name
Struktura lunárního úplavu: dvoudimenzionální globální hybridní simulace
Czech description
Studujeme strukturu a vlastnosti lunárního úplavu s těmito parametry slunečního větru: úhel mezi orientací rychlosti slunečního větru (v = 6vA) a meziplanetárního magnetického pole 45 a 90 stupňů, kde vA označuje Alfvénovu rychlost ve slunečním větru.
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BL - Plasma physics and discharge through gases
OECD FORD branch
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Result continuities
Project
GA205/05/1011: Global-scale and meso-scale numerical modeling of space plasmas
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geophysical Research Letters
ISSN
0094-8276
e-ISSN
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Volume of the periodical
32
Issue of the periodical within the volume
-
Country of publishing house
US - UNITED STATES
Number of pages
4
Pages from-to
"L06102/1"-"L06102/4
UT code for WoS article
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EID of the result in the Scopus database
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Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BL - Plasma physics and discharge through gases
Year of implementation
2005