AN EXTENSION OF THE HIGH-RESOLUTION MILLIMETER-WAVE AND SUBMILLIMETER-WAVE SPECTRUM OF METHANOL TO HIGH ANGULAR-MOMENTUM QUANTUM NUMBERS

被引:52
作者
ANDERSON, T [1 ]
HERBST, E [1 ]
DELUCIA, FC [1 ]
机构
[1] OHIO STATE UNIV,DEPT PHYS,COLUMBUS,OH 43210
关键词
LINE; IDENTIFICATION; MOLECULAR DATA; MOLECULAR PROCESSES; TECHNIQUES; SPECTROSCOPIC;
D O I
10.1086/191722
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The high-resolution laboratory millimeter- and submillimeter-wave spectra of (CH3OH)-C-12 and (CH3OH)-C-13 have been extended to include transitions involving significantly higher angular momentum quantum numbers than studied previously. For (CH3OH)-C-12, the data set now includes 549 A torsional substate transitions and 524 E torsional substate transitions through J less-than-or-equal-to 24, exclusive of blends. For (CH3OH)-C-13 the data set now includes 453 A torsional substate transitions and 440 E torsional substate transitions through J less-than-or-equal-to 24, exclusive of blends. The extended internal axis method (IAM) Hamiltonian has been used to analyze the transitions to experimental accuracy. The molecular constants determined by this approach have been used to predict accurately the frequencies of many transitions through J = 25 not measured in the laboratory.
引用
收藏
页码:405 / 444
页数:40
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