Spectroscopic [C i] mapping of the infrared dark cloud G48.65-0.29

Author： Ossenkopf V.   Ormel C. W.   Simon R.   Sun K.   Stutzki J.  

Publisher： Edp Sciences

E-ISSN： 1432-0746|525|issue|A9-A9

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.525, Iss.issue, 2010-11, pp. : A9-A9

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

Aims. We report the first spectroscopic mapping of an atomic carbon line in an infrared dark cloud (IRDC). By observing the spatial distribution of the [C i] emission in an IRDC, comparing it with the 13CO emission and the known distribution of internal heating sources, we can quantify the role of internal and external UV irradiation in the production of atomic carbon.

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