HIGH-RESOLUTION INFRARED-SPECTRUM OF CO ON MARS - EVIDENCE FOR EMISSION-LINES

被引：16
|
作者：
BILLEBAUD, F
CROVISIER, J
LELLOUCH, E
ENCRENAZ, T
MAILLARD, JP
机构：
[1] OBSERV PARIS,DESPA,F-92195 MEUDON,FRANCE
[2] INST ASTROPHYS,F-75014 PARIS,FRANCE
来源：
PLANETARY AND SPACE SCIENCE | 1991年 / 39卷 / 1-2期
关键词：
D O I：
10.1016/0032-0633(91)90144-Y
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Very-high resolution observations of Mars at 5-mu-m allowed detection of emission lines belonging to the 1-0 and 2-1 vibrational bands of CO. These transitions can be produced either by fluorescence following solar infrared excitation or by photolysis of CO2 yielding CO in excited states. A quantitative model taking into account these two NLTE mechanisms successfully reproduces the observed intensities. The rotational distribution of the 2-1 band is consistent with a temperature of 130 +/- 30 K at an altitude of 55 km.
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页码：213 / 218
页数：6
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