Publication Date:
1999-03-26
Description:
Spatially resolved infrared and ultraviolet wavelength spectra of Europa's leading, anti-jovian quadrant observed from the Galileo spacecraft show absorption features resulting from hydrogen peroxide. Comparisons with laboratory measurements indicate surface hydrogen peroxide concentrations of about 0.13 percent, by number, relative to water ice. The inferred abundance is consistent with radiolytic production of hydrogen peroxide by intense energetic particle bombardment and demonstrates that Europa's surface chemistry is dominated by radiolysis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carlson, R W -- Anderson, M S -- Johnson, R E -- Smythe, W D -- Hendrix, A R -- Barth, C A -- Soderblom, L A -- Hansen, G B -- McCord, T B -- Dalton, J B -- Clark, R N -- Shirley, J H -- Ocampo, A C -- Matson, D L -- New York, N.Y. -- Science. 1999 Mar 26;283(5410):2062-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA. rcarlson@lively.jpl.nasa.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10092224" target="_blank"〉PubMed〈/a〉
Keywords:
*Extraterrestrial Environment
;
Hydrogen Peroxide/*analysis/chemistry
;
Ice
;
*Jupiter
;
Spectrophotometry, Infrared
;
Spectrophotometry, Ultraviolet
;
Water/chemistry
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink
