PREDISSOCIATION LINEWIDTHS OF THE (1,0)-(12,0) SCHUMANN-RUNGE ABSORPTION-BANDS OF O-2 IN THE WAVELENGTH REGION 179-202-NM

被引：46

作者：

CHEUNG, ASC ^{[1
]}

YOSHINO, K ^{[1
]}

ESMOND, JR ^{[1
]}

CHIU, SSL ^{[1
]}

FREEMAN, DE ^{[1
]}

PARKINSON, WH ^{[1
]}

机构：

[1] HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138

来源：

JOURNAL OF CHEMICAL PHYSICS | 1990年 / 92卷 / 02期

关键词：

D O I：

10.1063/1.458117

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：

A nonlinear least-squares method of retrieving predissociation linewidths from the experimental absolute absorption cross sections of Yoshino et al. [Planet. Space Sci. 31, 339 (1983)] has been applied to the (1,0)-(12,0) Schumann-Runge bands of oxygen. Predissociation linewidths deduced for the Schumann-Runge bands are larger than the theoretical predictions of Julienne [J. Mol. Spectrosc. 63, 60 (1976)] and the latest measurements of Lewis et al. [J. Quant. Spectrosc. Radiat Transfer 36, 187 (1986)]. The larger linewidths found will have an impact on calculations of solar flux penetration into the Earth's atmosphere and of the photodissociation rates of trace species in the upper atmosphere. Systematic variation of predissociation linewidths with rotational quantum number is observed in the bands (v′,0) with v′ = 6, 8, 9, 11, and 12. © 1990 American Institute of Physics.

引用

页码：842 / 849

页数：8

共 32 条

[1] ABSORPTION CROSS SECTIONS OF SCHUMANN-RUNGE BANDS OF MOLECULAR OXYGEN [J].