Cooling by H3+ Emission

被引：40
|
作者：
Miller, Steve [1 ]
Stallard, Tom [2 ]
Tennyson, Jonathan [1 ]
Melin, Henrik [2 ]
机构：
[1] UCL, Dept Phys & Astron, London WC1E 6BT, England
[2] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England
来源：
JOURNAL OF PHYSICAL CHEMISTRY A | 2013年 / 117卷 / 39期
关键词：
SPECTRO-IMAGING OBSERVATIONS; FUNDAMENTAL-BAND; OVERTONE BAND; ROVIBRATIONAL TRANSITIONS; INTERSTELLAR-MEDIUM; PARTITION-FUNCTIONS; INFRARED-SPECTRUM; UPPER-ATMOSPHERE; H-3+; HOT;
D O I：
10.1021/jp312468b
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Emission by the H-3(+) molecular ion may be important in determining the energy balance in astrophysical situations, such as in (exo)planetary atmospheres Here we report the calculation of a new cooling function, based on refitted partition functions and a recalculation of the total energy emitted by the molecule. This new function gives significantly increased cooling at higher temperatures, typical of those found in the atmospheres of gas giants. It is shown that nonthermal effects also need to be considered A link to a web based code to calculate radiative cooling in H-2/H-3(+) gas mixtures, including the effects of departures from equilibrium, is provided.
引用
收藏
页码：9770 / 9777
页数：8
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