Galileo imaging of atmospheric emissions from Io.
Science
; 285(5429): 870-4, 1999 Aug 06.
Article
in En
| MEDLINE
| ID: mdl-10436151
ABSTRACT
The Galileo spacecraft has detected diffuse optical emissions from Io in high-resolution images acquired while the satellite was eclipsed by Jupiter. Three distinct components make up Io's visible emissions. Bright blue glows of more than 300 kilorayleighs emanate from volcanic plumes, probably due to electron impact on molecular sulfur dioxide. Weaker red emissions, possibly due to atomic oxygen, are seen along the limbs, brighter on the pole closest to the plasma torus. A faint green glow appears concentrated on the night side of Io, possibly produced by atomic sodium. Io's disk-averaged emission diminishes with time after entering eclipse, whereas the localized blue glows brighten instead.
Search on Google
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Oxygen
/
Sulfur Dioxide
/
Jupiter
/
Extraterrestrial Environment
Language:
En
Journal:
Science
Year:
1999
Document type:
Article
Affiliation country:
United States