[CI] 809 GHz Imaging of the NGC 6334 Complex

Document Type

Journal Article

Role

Author

Standard Number

0004-6264

Journal Title

Publications of the Astronomical Society of Japan

Volume

58

Issue

4

First Page

753

Last Page

757

Publication Date

2006

Abstract

We present Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) observations of submillimeter emissions from the NGC 6334 complex for both the 12[CI]3P2→3P1 fine-structure line of atomic carbon and the 12COJ=4→3 rotational transition of CO. We detected strong 12[CI]3P2→3P1 emission from the entire star-forming NGC 6334 complex, and present maps of 12[CI]3P2→3P1 emission and 12COJ=4→3 emission. Comparing these maps with archival ASCA data, we show that, to the south of NGC 6334, the [C I] emissions are likely to be associated with strong X-ray emissions from the FIR sources. However, the calculation using the X-ray dissociation region model shows that the majority of the [C I] emission can not arise from X-ray dissociation of the cloud. Alternatively, far-ultraviolet radiation produced in the photodissociation regions is expected to contribute to dissociate the carbon monoxide in the NGC 6334 complex.

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