Molecular ion upflow in the cleft ion fountain
نویسندگان
چکیده
منابع مشابه
The cleft ion fountain A twodimensional kinetic model
The transport of ionospheric ons from a source in the polar cleft ionosphere through the polax magnetosphere is investigated using a two-dimensional, kinetic, trajectory-based code. The transport model includes the effects of gravitation, longitudinal magnetic gradient force, convection electric fields, and parallel electric fields. Individual ion trajectories a well as distribution functions a...
متن کاملVelocity shear-related ion upflow in the low-altitude ionosphere
Strong ion upflows with field-aligned velocity above 1000 ms−1 were observed by the European Incoherent Scatter (EISCAT) UHF Radar at Tromsø, Norway in the dayside auroral region at heights between 500–600 km during the 15 May 1997 magnetic storm. Both the EISCAT observations and the Assimilative Mapping of Ionospheric Electrodynamics (AMIE) simulation results show that this event occurred in a...
متن کامل+ molecular ion
The photodissociation cross section of the molecular ion HeH was calculated within the Born-Oppenheimer approximation for a parallel, a perpendicular, and an isotropic orientation of the molecular axis with respect to the field, considering also different initial vibrational and rotational states. The results were compared to recent data from a free-electron laser experiment performed at the FL...
متن کاملSeasonal variation of the ion upflow in the topside ionosphere during SAPS (subauroral polarization stream) periods
A statistical study has been performed by using two years of DMSP (Defense Meteorological Satellite Program) plasma observations to investigate the seasonal effect of SAPS (subauroral polarization stream) on the ion upflow in the duskside ionosphere of the Northern Hemisphere. There are obvious upflows occurring in the topside ionosphere around the SAPS region, exceeding 200 m s−1 at winter sol...
متن کاملQuantum Chessboards in the Deuterium Molecular Ion
We present a new algorithm for vibrational control in deuterium molecules that is feasible with current experimental technology. A pump mechanism is used to create a coherent superposition of the D2 vibrations. A short, intense infrared control pulse is applied after a chosen delay time to create selective interferences. A ‘chessboard’ pattern of states can be realized in which a set of evenor ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 1999
ISSN: 0148-0227
DOI: 10.1029/1998ja900070