OBSERVATION OF J=1-]0 EMISSION FROM H(N-15)C

被引：5

作者：

BROWN, RD

GODFREY, PD

GUNN, HI

BLACKMAN, GL

STOREY, JWV

机构：

[1] MONASH UNIV,DEPT CHEM,CLAYTON 3168,VICTORIA,AUSTRALIA

[2] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1977年 / 180卷 / 03期

关键词：

Abundance ratios - Interstellar clouds - Isotopic abundances - Localised - Microwave absorption - Transition frequencies;

D O I：

10.1093/mnras/180.1.87P

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Emission from the J = 1 → 0 transition of H15NC has been detected in the direction of DR21(OH). The transition frequency of 88865.69 MHz was measured in the laboratory by microwave absorption spectroscopy. The 15N/13C isotopic abundance ratio of 1.01 for DR21(OH) is larger than those calculated from isotopes of HCN in other interstellar clouds, perhaps implying a localized enrichment in 15N in DR21(OH). © 1977 Royal Astronomical Society.

引用

页码：P87 / P89

页数：3