The ion environment near Europa and its role in surface energetics

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Sulfuric acid on Europa and the radiolytic sulfur cycle.

R Carlson, R E Johnson, M S Anderson (1999)

A comparison of laboratory spectra with Galileo data indicates that hydrated sulfuric acid is present and is a major component of Europa's surface. In addition, this moon's visually dark surface material, which spatially correlates with the sulfuric acid concentration, is identified as radiolytically altered sulfur polymers. Radiolysis of the surface by magnetospheric plasma bombardment continuously cycles sulfur between three forms: sulfuric acid, sulfur dioxide, and sulfur polymers, with sulfuric acid being about 50 times as abundant as the other forms. Enhanced sulfuric acid concentrations are found in Europa's geologically young terrains, suggesting that low-temperature, liquid sulfuric acid may influence geological processes.

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Salts on Europa's Surface Detected by Galileo's Near Infrared Mapping Spectrometer

T McCord (1998)

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Energetic Ion and Electron Irradiation of the Icy Galilean Satellites

J. Cooper, Henry Garrett (2001)

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Author and article information

Journal

Title: Geophysical Research Letters

Abbreviated Title: Geophys. Res. Lett.

Publisher: American Geophysical Union (AGU)

ISSN: 00948276

Publication date Created: March 2002

Publication date (Print): March 2002

Volume: 29

Issue: 5

Pages: 18-1-18-4

Article

DOI: 10.1029/2001GL014127

SO-VID: d53c8de9-04ac-463b-92fa-5fd444f8876e

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http://doi.wiley.com/10.1002/tdm_license_1.1

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