Source: Journal of Geophysical Research-Solid Earth, doi:10.1029/2011JB008595, 2012 http://dx.doi.org/10.1029/2011JB008595
Title: Estimating near-surface shear wave velocities in Japan by applying seismic interferometry to KiK-net data
Authors: N. Nakata: Department of Urban Management, Kyoto University, Kyoto, Japan and Center for Wave Phenomena, Department of Geophysics, Colorado School of Mines, Golden, Colorado, USA;
R. Snieder: Center for Wave Phenomena, Department of Geophysics, Colorado School of Mines, Golden, Colorado, USA.
6. Molecular oxygen ions confirm exosphere at Saturn's moon Dione
The Cassini spacecraft flew by Dione, one of Saturn's icy moons, on 7 April 2010. During that flyby, instruments detected molecular oxygen ions around the moon. Tokar et al. used those measurements to estimate the density of the molecular oxygen ions to be in the range of 0.01 to 0.09 ions per cubic centimeter (or ions per 0.06 cubic inches). These molecular oxygen ions are produced when neutral molecules are ionized; the measurements confirm that a neutral exosphere surrounds Dione.
Source: Geophysical Research Letters, doi:10.1029/2011GL050452, 2012 http://dx.doi.org/10.1029/2011GL050452
Title: Detection of Exospheric O2+ at Saturn's Moon Dione
R. L. Tokar: Space Science and Applications, Los Alamos National Labor
|Contact: Kate Ramsayer|
American Geophysical Union