SPUTTER-PRODUCED PLASMA AS A MEASURE OF SATELLITE SURFACE-COMPOSITION - THE CASSINI MISSION

被引：22

作者：

JOHNSON, RE ^{[1
]}

SITTLER, EC ^{[1
]}

机构：

[1] NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771

来源：

GEOPHYSICAL RESEARCH LETTERS | 1990年 / 17卷 / 10期

关键词：

D O I：

10.1029/GL017i010p01629

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Measurements of the co‐orbiting neutral cloud or the plasma produced by sputtering of the icy Saturnian satellites can be used to determine the relative abundance of a minority surface species which would be difficult to determine from reflectance spectra. This is due to the fact that the sputter source rates, hence the plasma supply rates, are directly proportional to the bulk concentrations of mixed solids or clathrates, although the surface grains may be depleted in the most volatile species. Copyright 1990 by the American Geophysical Union.

引用

页码：1629 / 1632

页数：4

共 24 条

[1]

BARBOSA DD, 1990, IN PRESS J GEOPHYS R

[2]

Betz G., 1983, SPUTTERING PARTICLE, P11

[3] OVERVIEW OF THE VOYAGER ULTRAVIOLET SPECTROMETRY RESULTS THROUGH JUPITER ENCOUNTER [J].