What is the parent of CH in the coma of comet C/1995 O1 (Hale-Bopp)?

被引：1
|
作者：
Cochran, AL [1 ]
Boice, DC
Barker, ES
Laffont, C
机构：
[1] Univ Texas, Austin, TX 78712 USA
[2] SW Res Inst, San Antonio, TX 78228 USA
[3] Observ Besancon, Besancon, France
来源：
EARTH MOON AND PLANETS | 1997年 / 78卷 / 1-3期
关键词：
comets; chemistry; spectra;
D O I：
10.1023/A:1006235715217
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The ratio of CH4/CO in comets is an important indicator of the region of their formation. However, it is difficult to measure the quantity of CH4. The Giotto Ion Mass Spectrometer experiment observed a quantity of CH+ which seemed inconsistent with the amount of CH4 observed. Thus, it was proposed that a source of the CH+ was a distributed source in the dust. We tested this hypothesis by observing the CH emission strength in comet Hale-Bopp as a function of dustiness. We see no strong correlation between the dust and the gas. Thus, for Hale-Bopp, dust is unlikely to be a dominant source of CH.
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收藏
页码：85 / 91
页数：7
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