Mercury's Exosphere as Seen by BepiColombo/PHEBUS Visible Channels During the First Two Flybys
Résumé
, BepiColombo is on a 7-year journey to Mercury. It is a joint mission between the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA). It comprises two spacecraft, the ESA-led spacecraft Mercury Planetary Orbiter (MPO) and the JAXA-led spacecraft Mercury Magnetospheric Orbiter (MMO). The orbiters are currently in cruise configuration that is, they are stacked on the Mercury Transfer Module (MTM). PHEBUS, standing for Probing of Hermean Environment By Ultraviolet Spectroscopy, is one of the 11 instruments on board MPO. PHEBUS is composed of two detectors operating in overlapping spectral ranges in the ultraviolet (EUV: 55-155 nm, and FUV: 145-315 nm) and two visible channels dedicated to the calcium (c422: 422 nm) and potassium (c404: 404 nm) line measurements. The instrument is devoted to the study of the exosphere of Mercury, its composition, dynamics, variability and its interface with the surface of the planet and the solar wind. The instrument and its scientific objectives are described in more detail in Chassefière et al. (2010) and Quémerais et al. (2020).
Domaines
Planète et Univers [physics]
Fichier principal
JGR Planets - 2023 - Robidel - Mercury s Exosphere as Seen by BepiColombo PHEBUS Visible Channels During the First Two.pdf (2.23 Mo)
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