Publications by authors named "Gethyn R Lewis"
Article Synopsis
- The study compares geometric factors (GF) from computer simulations and lab measurements for NASA's new Dual Electron Spectrometer (DES) used in the Magnetospheric Multiscale mission.
- Particle simulations are crucial in designing and calibrating electrostatic analyzers, as they help to identify and reduce systematic errors common in lab settings.
- The researchers derived new equations for calculating GF and demonstrated their applicability to the DES instrument, showing consistent results between simulations and laboratory measurements.
The detection of heavy negative ions (up to 13 800 amu) in Titan's ionosphere is one of the tantalizing new results from the Cassini mission. These heavy ions indicate for the first time the existence of heavy hydrocarbon and nitrile molecules in this primitive Earth-like atmosphere. These ions were suggested to be precursors of aerosols in Titan's atmosphere and may precipitate to the surface as tholins.
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