The millimeter and submillimeter spectrum of CRL618

被引：0

作者：

Pardo, JR ^{[1
]}

Cernicharo, JR ^{[1
]}

Goicoechea, JR ^{[1
]}

Guélin, M ^{[1
]}

Phillips, TG ^{[1
]}

机构：

[1] CSIC, IEM, Dept Astrofis Mol & Infrarroja, E-28006 Madrid, Spain

来源：

PROCEEDINGS OF THE DUSTY AND MOLECULAR UNIVERSE: A PRELUDE TO HERSCHEL AND ALMA | 2005年 / 577卷

关键词：

ISM; molecules; -; line; identification;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the millimeter and submillimeter line survey of the proto-planetary nebula CRL618. The survey has been carried out with the 30-m IZAM radiotelescope (80-115, 129-180, and 202-278 GHz) and the CSO telescope (280-350 GHz). The line survey shows the rotational lines of several molecular species that are produced in the proto-planetary nebula stage and that are absent in the AGB phase represented by IRC + 10216. The wide frequency coverage allows a precise modeling of the molecular emission and permits to derive the physical parameters of the inner regions of CRL618 at angular scales below 5". The abundances of HC3N and HC5N, the dominant species in number of detected lines, are enhanced by a factor larger than 100 relative to those found in red giants and AGB stars.

引用

页码：455 / 456

页数：2

共 6 条

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