DETECTION OF THE 3.4-MU-M AND 2.8-MU-M EMISSION FEATURES IN COMET BRADFIELD (1987S)

被引：8

作者：

BROOKE, TY

TOKUNAGA, AT

KNACKE, RF

OWEN, TC

MUMMA, MJ

REUTER, D

STORRS, AD

机构：

[1] SUNY STONY BROOK,DEPT EARTH & SPACE SCI,ASTRON PROGRAM,STONY BROOK,NY 11794

[2] NASA,GODDARD SPACE FLIGHT CTR,PLANETARY SYST BRANCH,GREENBELT,MD 20771

来源：

ICARUS | 1990年 / 83卷 / 02期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/0019-1035(90)90077-M

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A CH emission feature at 3.4 μm was detected in Comet Bradfield (1987s). The spectral shapes of this feature and of an additional emission feature near 2.8 μm are similar to those seen in Comets Halley and Wilson (1986l). For resonance fluorescence, derived abundances of the CH bonds in Bradfield are comparable to those of Halley and Wilson, within the uncertainties in the water production rates at the times of the observations. For thermal emission, the relative abundances depend on the assumed temperatures of the emitting grains. © 1990.

引用

页码：434 / 440

页数：7

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