C2 absorption-line diagnostics of diffuse interstellar clouds

被引：27

作者：

Cecchi-Pestellini, C

Dalgarno, A

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[2] Univ Florence, Dipartimento Astron & Sci Spazio, I-50125 Florence, Italy

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2002年 / 331卷 / 03期

关键词：

molecular processes; ISM : clouds; ISM : individual : Cygnus OB2No. 12; ISM : molecules;

D O I：

10.1046/j.1365-8711.2002.05418.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The excitation of the diatomic carbon molecule in diffuse interstellar clouds is discussed for a cloud with large density fluctuations of small linear filling factor along the line of sight. Possible implications for the chemistry of the diffuse cloud in front of Cygnus OB2 No. 12 are discussed.

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收藏

页码：L31 / L34

页数：4

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