Discovery of chlorine in the Io torus

被引：58

作者：

Küppers, M ^{[1
]}

Schneider, NM ^{[1
]}

机构：

[1] Univ Colorado, Atmospher & Space Phys Lab, Boulder, CO 80309 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2000年 / 27卷 / 04期

关键词：

D O I：

10.1029/1999GL010718

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We report the discovery of singly ionized chlorine in the Io plasma torus through the detection of emission at 857.9 nm. The 40 Rayleigh peal; intensity at 857.9 nm corresponds to a Cl+ abundance of 2+/-0.5% relative to all ions. Since Cl+ probably originates at Io, Io's atmosphere must have the highest proportion of chlorine of any solar system body. While Cl+ plays only a minor role in torus physics, the presence of chlorine in Io's atmosphere, surface, and interior has more profound implications. Salt as a solid or gas is probably an important source of both Na and Cl in Io's vicinity.

引用

页码：513 / 516

页数：4

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