Bow shock's geometry at the magnetospheric flanks
作者： J. Merka
DOI: 10.1029/2004JA010567
关键词: Geometry 、 Shock (mechanics) 、 Shock wave 、 Solar wind 、 Physics 、 Mach number 、 Magnetosphere 、 Oblique shock 、 Bow shock (aerodynamics) 、 Magnetopause 、 Earth-Surface Processes 、 Ecology (disciplines) 、 Earth and Planetary Sciences (miscellaneous) 、 Space and Planetary Science 、 Palaeontology 、 Forestry 、 Aquatic science 、 Atmospheric Science 、 Soil science 、 Geochemistry and Petrology 、 Geophysics 、 Oceanography 、 Water Science and Technology
摘要: [1] The database of IMP 8 bow shock crossings was used to investigate properties the shock's cross section between 10 and 15 RE tailward Earth in response selected upstream magnetospheric parameters. Best-fitted ellipses were derived for each parameter subset analyzed. We have found that average solar wind conditions, moves north-south directions by 3.8 when dipole tilt changes from sunward antisunward orientations. Comparisons with results provided global three-dimensional MHD simulations magnetosphere shown angle effect is likely be also important estimation dayside wave's position. orientation IMF respect flow, expressed θ Bv , influence size stability shape/position. observed Mach number dependence agreed previous studies no other significant IMF-induced asymmetries found.
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