Heidelberg 2022 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 4: Planets and Small bodies

EP 4.1: Hauptvortrag

Dienstag, 22. März 2022, 14:00–14:30, EP-H1

Exploration of the Jupiter system with a small submillimetre wave telescope onboard the JUICE satellite — •Paul Hartogh — Justus-von-Liebig-Weg 3, 37077 Göttingen, Germany

JUICE - JUpiter ICy moons Explorer it the first large class mission of ESA's Cosmic Vision 2015 - 2025 program. The JUICE satellite is planned to be launched in 2023 and will arrive in 2032. The primary mission in the Jupiter system will take about three years. The focus of the mission is Jupiter itself and the Galilean satellites, their internal oceans and potential habitability. Recent ground-based observations of Europa and Ganymede showed water vapor plumes, probably related to geysers on their surfaces. JUICE intends to identify the geysers, monitor their potential activity and molecular and isotopic composition in order to constrain satellite formation models and development processes (of chemical, physical and potentially biologic nature) in the interior of their oceans. Jupiter itself is seen as an archetype of a gas giant. A better understanding of its atmospheric processes will be a baseline for a better understanding of gas giants outside our solar system. JUICE will characterize the general circulation of Jupiter's atmosphere, its meteorology, chemistry and structure between the upper cloud deck and the ionosphere and magnetosphere. The Submillimetre Wave Instrument (SWI) is part of the JUICE science payload. SWI covers two spectral bands between 530 and 1275 GHz. The SWI functionalities and specifications as well as required technology developments during the last decades and how the unique capabilities of SWI will help to answer JUICE key science questions will be presented.