The Effects of Magnetosheath Electrons on Charge Exchange, Radiation Trapping and Other Atomic and Molecular Processes in the Mid-Day Polar Cusp Thermosphere

摘要: Magnetosheath electrons precipitating in the mid-day cusp region dissipate most of their energy thermosphere above 200 km where atomic species are more abundant than at lower altitudes. Part atmosphere these excite auroras is also sunlit. The high abundance species, longer mean free path and presence sunlight atmospheric formed, permit studies certain interactions among constituents, as well radiation transport process, which cannot be observed laboratories or altitude night time auroras. Examples such upper processes amenable to investigations (i) charge exchange reactions between 0+(2D) N2, (ii) radiative entrapment extreme ultraviolet its effect on auroral emissions, (iii)iresonant scattering by (iv) buildup vibrationally excited molecules level expected from kinetic temperatures thermosphere, (v) variations thermospheric N He, (vi) propagation disturbances mesosphere.