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.

引用

页码：213 / 218

页数：6

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