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astro-ph.EP2025
Ion-neutral chemistry at icy moons: the case of Ganymede
A. Beth, M. Galand, X. Jia +1
Icy moons orbiting giant planets are often described as airless bodies though they host an exosphere where collisions between neutral species are scarce. In the case of Ganymede, t…
astro-ph.EP2025
Cometary ion dynamics at 67P: A collisional test-particle approach with Rosetta data comparison
Zoe Lewis, Peter Stephenson, Arnaud Beth +3
The Rosetta spacecraft escorted comet 67P/Churyumov-Gerasimenko for two years, gathering a rich and variable dataset. Amongst the data from the Rosetta Plasma Consortium (RPC) suit…
astro-ph.EP2025
Ionosphere of Ganymede: Galileo observations versus test particle simulation
Arnaud Beth, Marina Galand, Ronan Modolo +3
In this paper, we model the plasma environment of Ganymede by means of a collisionless test particle simulation. By coupling the outputs from a DSMC simulation of Ganymede's exosph…