0025218 - ÚFA 2006 RIV US eng J - Journal Article
Trávníček, Pavel - Hellinger, Petr - Schriver, D. - Bale, S. D.
Structure of the lunar wake: Two-dimensional global hybrid simulations.
[Struktura lunárního úplavu: dvoudimenzionální globální hybridní simulace.]
Geophysical Research Letters. Roč. 32, - (2005), L06102/1-L06102/4. ISSN 0094-8276. E-ISSN 1944-8007
R&D Projects: GA ČR(CZ) GA205/05/1011
Grant - others:ESA(XE) PRODEX 14529; NSF(US) INT- 0010111; NASA(US) NAG5-11804
Institutional research plan: CEZ:AV0Z30420517
Keywords : hybrid simulations * lunar wake
Subject RIV: BL - Plasma and Gas Discharge Physics
Impact factor: 2.491, year: 2005

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.

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.
Permanent Link: http://hdl.handle.net/11104/0115629