TY - JOUR
T1 - Europan surface phenomena
AU - Eviatar, Aharon
AU - Bar-nun, Akiva
AU - Podolak, Morris
N1 - Funding Information:
(11) ciate the helpful commentosfan anonymourseferee.and to D. L. Matsonfor a usefuldiscussionW.eappre- This work was supportedin part by a grant from the Adler Foundationvia the Commissionfor Basic Re-searchof the Israel Academyof SciencesandHumani-ties.
PY - 1985/2
Y1 - 1985/2
N2 - The interaction of corotating iogenic plasma with the surface of Europa in light of recent ice sputtering, experimental results, and published Voyager data has been examined. It has been found that the residual atmosphere of Europa is made up of sputtered molecular oxygen and is exospheric from the surface outwards. It was also found that if sputtering, redistribution, and escape are considered and the sulfur dioxide/water mixing ratio is held constant over a UV observing depth, the observed sulfur dioxide density on the trailing hemisphere lends support to the hypothesis that liquid water from the interior of Europa is boiling out and being deposited as a frost layer on the surface at the rate of about 0.04 μm/year.
AB - The interaction of corotating iogenic plasma with the surface of Europa in light of recent ice sputtering, experimental results, and published Voyager data has been examined. It has been found that the residual atmosphere of Europa is made up of sputtered molecular oxygen and is exospheric from the surface outwards. It was also found that if sputtering, redistribution, and escape are considered and the sulfur dioxide/water mixing ratio is held constant over a UV observing depth, the observed sulfur dioxide density on the trailing hemisphere lends support to the hypothesis that liquid water from the interior of Europa is boiling out and being deposited as a frost layer on the surface at the rate of about 0.04 μm/year.
UR - http://www.scopus.com/inward/record.url?scp=0001331866&partnerID=8YFLogxK
U2 - 10.1016/0019-1035(85)90100-9
DO - 10.1016/0019-1035(85)90100-9
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AN - SCOPUS:0001331866
SN - 0019-1035
VL - 61
SP - 185
EP - 191
JO - Icarus
JF - Icarus
IS - 2
ER -