ASTRONOMICAL DETECTION OF H2CCC

被引：197

作者：

CERNICHARO, J

GOTTLIEB, CA

GUELIN, M

KILLIAN, TC

PAUBERT, G

THADDEUS, P

VRTILEK, JM

机构：

[1] CTR ASTRON YEBES,GUADALAJARA,SPAIN

[2] HARVARD UNIV,DIV APPL SCI,CAMBRIDGE,MA 02138

[3] UNIV GRENOBLE 1,IRAM,F-38402 ST MARTIN DHERES,FRANCE

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

来源：

ASTROPHYSICAL JOURNAL | 1991年 / 368卷 / 02期

关键词：

D O I：

10.1086/185943

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

H2CCC, an isomer of the widely distributed interstellar ring C3H2, has been detected in the TMC-1 and possibly IRC + 10216 with the IRAM 30 m telescope, following a recent laboratory determination of the rotational spectrum of this new type of highly polar carbon chain. The rotational temperature of H2CCC in TMC-1, like that of other highly polar molecules in this source, is very low: 4-6 K; the column density is also fairly low: (2.5 +/- 0.5) x 10(12) cm-2, slightly more than 1% that of the cyclic isomer.

引用

页码：L39 / L41

页数：3

共 16 条

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[2]

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[3]

CERNICHARO J, 1987, ASTRON ASTROPHYS, V181, pL1

[4]

CHURCHWELL E, 1978, ASTRON ASTROPHYS, V67, P139