Characterization of the Surfaces and Near-Surface Atmospheres of Ganymede, Europa and Callisto by JUICE.

Tosi, Federico; Roatsch, Thomas; Galli, André; Hauber, Ernst; Lucchetti, Alice; Molyneux, Philippa; Stephan, Katrin; Achilleos, Nicholas; Bovolo, Francesca; Carter, John; Cavalié, Thibault; Cimò, Giuseppe; D'Aversa, Emiliano; Gwinner, Klaus; Hartogh, Paul; Huybrighs, Hans; Langevin, Yves; Lellouch, Emmanuel; Migliorini, Alessandra; Palumbo, Pasquale; ... (2024). Characterization of the Surfaces and Near-Surface Atmospheres of Ganymede, Europa and Callisto by JUICE. Space science reviews, 220(59) Kluwer Academic Publishers 10.1007/s11214-024-01089-8

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We present the state of the art on the study of surfaces and tenuous atmospheres of the icy Galilean satellites Ganymede, Europa and Callisto, from past and ongoing space exploration conducted with several spacecraft to recent telescopic observations, and we show how the ESA JUICE mission plans to explore these surfaces and atmospheres in detail with its scientific payload. The surface geology of the moons is the main evidence of their evolution and reflects the internal heating provided by tidal interactions. Surface composition is the result of endogenous and exogenous processes, with the former providing valuable information about the potential composition of shallow subsurface liquid pockets, possibly connected to deeper oceans. Finally, the icy Galilean moons have tenuous atmospheres that arise from charged particle sputtering affecting their surfaces. In the case of Europa, plumes of water vapour have also been reported, whose phenomenology at present is poorly understood and requires future close exploration. In the three main sections of the article, we discuss these topics, highlighting the key scientific objectives and investigations to be achieved by JUICE. Based on a recent predicted trajectory, we also show potential coverage maps and other examples of reference measurements. The scientific discussion and observation planning presented here are the outcome of the JUICE Working Group 2 (WG2): "Surfaces and Near-surface Exospheres of the Satellites, dust and rings".

Item Type:

Journal Article (Review Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences
08 Faculty of Science > Physics Institute

UniBE Contributor:

Galli, A, Wurz, Peter

Subjects:

500 Science > 530 Physics
500 Science > 520 Astronomy
600 Technology > 620 Engineering
000 Computer science, knowledge & systems

ISSN:

0038-6308

Publisher:

Kluwer Academic Publishers

Language:

English

Submitter:

Pubmed Import

Date Deposited:

13 Aug 2024 15:41

Last Modified:

14 Aug 2024 02:21

Publisher DOI:

10.1007/s11214-024-01089-8

PubMed ID:

39132056

Uncontrolled Keywords:

Geology Icy Galilean satellites JUICE Near-surface atmospheres Surface composition

BORIS DOI:

10.48350/199659

URI:

https://boris.unibe.ch/id/eprint/199659

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