Hco+ in the Coma of Comet Hale–Bopp

被引：0
|
作者：
A. J. Lovell
F. P. Schloerb
E. A. Bergin
J. E. Dickens
C. H. Devries
M. C. Senay
W. M. Irvine
机构：
[1] University of Massachusetts,Five College Radio Astronomy Observatory
[2] Smithsonian Astrophysical Observatory,Five College Radio Astronomy Observatory
[3] University of Massachusetts,undefined
来源：
Earth, Moon, and Planets | 1997年 / 77卷 / 3期
关键词：
Comets; HCO+; chemistry; plasmas;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Maps of comet C/1995 O1 (Hale-Bopp) in the millimeter-wave emission of the ion HCO+ revealed a local minimum near the nucleus position, with a maximum about 100,000 km in the antisolar direction. These observed features of the HCO+ emission require a low abundance of HCO+ due to enhanced destruction in the inner coma of the comet, within a region of low electron temperature (Te). To set constraints on the formation of HCO+ in the coma, as well as the location and magnitude of the transition to higher Te, the data are compared with the results of ion-molecule chemistry models.
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页码：253 / 258
页数：5
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