Laboratory detection of the C7H radical

被引：30

作者：

Travers, MJ ^{[1
]}

McCarthy, MC ^{[1
]}

Gottlieb, CA ^{[1
]}

Thaddeus, P ^{[1
]}

机构：

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

来源：

ASTROPHYSICAL JOURNAL | 1996年 / 465卷 / 01期

关键词：

ISM; molecules; line; identification; molecular data; molecular processes; radio lines;

D O I：

10.1086/310135

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The linear carbon chain radical C7H has been detected in the same acetylene-argon discharge in which C8H was recently observed. Fifty rotational transitions, 23 in the ground (II1/2)-I-2 state and 27 in the (II3/2)-I-2 state (37 K higher in energy), were measured. Precise values for the rotational, fine structure, and lambda-doubling constants have been derived which allow calculation of the entire microwave and millimeter-wave spectrum to an accuracy of 0.2 km s(-1) or better. With the recent discovery of C8H in space, C7H is an excellent candidate for astronomical detection. To aid future observations, the transition frequencies for the most interesting astronomical lines are tabulated.

引用

页码：L77 / L80

页数：4

共 21 条

[1] FOURIER SPECTROSCOPY OF THE OD INFRARED-SPECTRUM - MERGE OF ELECTRONIC, VIBRATION-ROTATION, AND MICROWAVE SPECTROSCOPIC DATA [J].