Using ARTEMIS pickup ion observations to place constraints on the lunar atmosphere
نویسندگان
چکیده
منابع مشابه
Using ARTEMIS pickup ion observations to place constraints on the lunar atmosphere
[1] We present a method for deriving constraints on the structure and composition of the lunar atmosphere by using pickup ion measurements from ARTEMIS, mapping observed fluxes from the spacecraft location to derive production rates at the source region, and fitting to a parameterized neutral atmosphere model. We apply this technique to ~12min of high-resolution burst data collected by ARTEMIS ...
متن کاملARTEMIS observations of lunar pickup ions: Mass constraints on ion species
[1] Observations of heavy ions of lunar origin give important information regarding lunar exospheric processes, especially with respect to exospheric particle abundance and composition. Electrostatic analyzers without a time-of-flight section provide highly sensitive, absolute density detection but without mass discrimination. Here we place constraints on lunar ion species through inference of ...
متن کاملModel-based constraints on the lunar exosphere derived from ARTEMIS pickup ion observations in the terrestrial magnetotail
[1] We use Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon’s Interaction with the Sun (ARTEMIS) measurements of lunar exospheric pickup ions in the terrestrial magnetotail lobes combined with a particle-tracing model to constrain the source species and distributions of the lunar neutral exosphere. These pickup ions, generated by photoionization of neutral species while th...
متن کاملLunar pickup ions observed by ARTEMIS: Spatial and temporal distribution and constraints on species and source locations
[1] ARTEMIS observes pickup ions around the Moon, at distances of up to 20,000 km from the surface. The observed ions form a plume with a narrow spatial and angular extent, generally seen in a single energy/angle bin of the ESA instrument. Though ARTEMIS has no mass resolution capability, we can utilize the analytically describable characteristics of pickup ion trajectories to constrain the pos...
متن کاملLunar dayside current in the terrestrial lobe: ARTEMIS observations
We report Acceleration, Reconnection, Turbulence and Electrodynamics of Moon’s Interaction with the Sun (ARTEMIS) dual-probe observations of two events in the terrestrial magnetotail lobe, both characterized by upward moving heavy ions of lunar origin at one of the probes that is magnetically connected with the dayside lunar surface. By treating magnetic measurements at the other probe as the u...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Planets
سال: 2013
ISSN: 2169-9097
DOI: 10.1029/2012je004292