Universität zu Köln

Plainaki, Christina ORCID: 0000-0003-1483-5052, Cassidy, Tim A., Shematovich, Valery I., Milillo, Anna ORCID: 0000-0002-0266-2556, Wurz, Peter ORCID: 0000-0002-2603-1169, Vorburger, Audrey, Roth, Lorenz ORCID: 0000-0003-0554-4691, Galli, Andre, Rubin, Martin ORCID: 0000-0001-6549-3318, Bloecker, Aljona, Brandt, Pontus C., Crary, Frank, Dandouras, Iannis ORCID: 0000-0002-7121-1118, Jia, Xianzhe ORCID: 0000-0002-8685-1484, Grassi, Davide ORCID: 0000-0003-1653-3066, Hartogh, Paul, Lucchetti, Alice, McGrath, Melissa, Mangano, Valeria, Mura, Alessandro ORCID: 0000-0002-4552-4292, Orsini, Stefano, Paranicas, Chris, Radioti, Aikaterini, Retherford, Kurt D., Saur, Joachim ORCID: 0000-0003-1413-1231 and Teolis, Ben (2018). Towards a Global Unified Model of Europa's Tenuous Atmosphere. Space Sci. Rev., 214 (1). DORDRECHT: SPRINGER. ISSN 1572-9672

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Abstract

Despite the numerous modeling efforts of the past, our knowledge on the radiation-induced physical and chemical processes in Europa's tenuous atmosphere and on the exchange of material between the moon's surface and Jupiter's magnetosphere remains limited. In lack of an adequate number of in situ observations, the existence of a wide variety of models based on different scenarios and considerations has resulted in a fragmentary understanding of the interactions of the magnetospheric ion population with both the moon's icy surface and neutral gas envelope. Models show large discrepancy in the source and loss rates of the different constituents as well as in the determination of the spatial distribution of the atmosphere and its variation with time. The existence of several models based on very different approaches highlights the need of a detailed comparison among them with the final goal of developing a unified model of Europa's tenuous atmosphere. The availability to the science community of such a model could be of particular interest in view of the planning of the future mission observations ( e.g., ESA's JUpiter ICy moons Explorer ( JUICE) mission, and NASA's Europa Clipper mission). We review the existing models of Europa's tenuous atmosphere and discuss each of their derived characteristics of the neutral environment. We also discuss discrepancies among different models and the assumptions of the plasma environment in the vicinity of Europa. A summary of the existing observations of both the neutral and the plasma environments at Europa is also presented. The characteristics of a global unified model of the tenuous atmosphere are, then, discussed. Finally, we identify needed future experimental work in laboratories and propose some suitable observation strategies for upcoming missions.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Plainaki, Christina UNSPECIFIED orcid.org/0000-0003-1483-5052 UNSPECIFIED Cassidy, Tim A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Shematovich, Valery I. UNSPECIFIED UNSPECIFIED UNSPECIFIED Milillo, Anna UNSPECIFIED orcid.org/0000-0002-0266-2556 UNSPECIFIED Wurz, Peter UNSPECIFIED orcid.org/0000-0002-2603-1169 UNSPECIFIED Vorburger, Audrey UNSPECIFIED UNSPECIFIED UNSPECIFIED Roth, Lorenz UNSPECIFIED orcid.org/0000-0003-0554-4691 UNSPECIFIED Galli, Andre UNSPECIFIED UNSPECIFIED UNSPECIFIED Rubin, Martin UNSPECIFIED orcid.org/0000-0001-6549-3318 UNSPECIFIED Bloecker, Aljona UNSPECIFIED UNSPECIFIED UNSPECIFIED Brandt, Pontus C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Crary, Frank UNSPECIFIED UNSPECIFIED UNSPECIFIED Dandouras, Iannis UNSPECIFIED orcid.org/0000-0002-7121-1118 UNSPECIFIED Jia, Xianzhe UNSPECIFIED orcid.org/0000-0002-8685-1484 UNSPECIFIED Grassi, Davide UNSPECIFIED orcid.org/0000-0003-1653-3066 UNSPECIFIED Hartogh, Paul UNSPECIFIED UNSPECIFIED UNSPECIFIED Lucchetti, Alice UNSPECIFIED UNSPECIFIED UNSPECIFIED McGrath, Melissa UNSPECIFIED UNSPECIFIED UNSPECIFIED Mangano, Valeria UNSPECIFIED UNSPECIFIED UNSPECIFIED Mura, Alessandro UNSPECIFIED orcid.org/0000-0002-4552-4292 UNSPECIFIED Orsini, Stefano UNSPECIFIED UNSPECIFIED UNSPECIFIED Paranicas, Chris UNSPECIFIED UNSPECIFIED UNSPECIFIED Radioti, Aikaterini UNSPECIFIED UNSPECIFIED UNSPECIFIED Retherford, Kurt D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Saur, Joachim UNSPECIFIED orcid.org/0000-0003-1413-1231 UNSPECIFIED Teolis, Ben UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-196729
DOI:	10.1007/s11214-018-0469-6
Journal or Publication Title:	Space Sci. Rev.
Volume:	214
Number:	1
Date:	2018
Publisher:	SPRINGER
Place of Publication:	DORDRECHT
ISSN:	1572-9672
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language IO PLASMA TORUS; ENERGETIC NEUTRAL ATOMS; OUTER SOLAR-SYSTEM; RADIATION MAGNETOHYDRODYNAMICS CODE; MONTE-CARLO-SIMULATION; 2 SPACE DIMENSIONS; WATER ICE; JOVIAN MAGNETOSPHERE; OXYGEN ATMOSPHERE; MHD SIMULATIONS Multiple languages Astronomy & Astrophysics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/19672