Collision induced absorption spectra of N2 and CH4

被引：2

作者：

Johnson, R. ^{[1
]}

Bernath, P. ^{[1
,2
]}

Billinghurst, B. ^{[3
]}

Zhao, J. ^{[3
]}

机构：

[1] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA

[2] Old Dominion Univ, Dept Chem & Biochem, Norfolk, VA 23529 USA

[3] Canadian Light Source Far Infrared Beamline, Saskatoon, SK, Canada

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2024年 / 329卷

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会;

关键词：

Collision-induced absorption; FAR-INFRARED-ABSORPTION; MIXTURES; NITROGEN; METHANE; PAIRS; BAND; GAS;

D O I：

10.1016/j.jqsrt.2024.109189

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Collision-induced absorption (CIA) spectra of nitrogen and methane are needed to model radiative transfer in atmospheres of objects such as Saturn's moon, Titan. We present rare, extremely low temperature Fourier transform infrared spectra of nitrogen and methane rototranslation CIA in the range of 40-600 cm-1. The peak CIA of methane was found to be 2.05x10-5 cm-1/amagat2 at 123.8 K while nitrogen had a peak value of 1.65x10-<SUP>5</SUP> cm-1/amagat2 at an average temperature of 102.5 K. These measurements were made possible by the unique instrumentation available at the Far-IR beamline at the Canadian Light Source.

引用

页数：6

共 32 条

[1]

Bernath P., 1995, SPECTRA ATOMS MOL, V1st

[2] On the H2 abundance and ortho-to-para ratio in Titan's troposphere [J].