AST/RO Observations of Atomic Carbon in the Galactic Center

Details AST/RO Observations of Atomic Carbon in the Galactic Center AST/RO Observations of Atomic Carbon in the Galactic Center

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...192.5806o&link_type=abstract

American Astronomical Society, 192nd AAS Meeting, #58.06; Bulletin of the American Astronomical Society, Vol. 30, p.904

Astronomy and Astrophysics

Astrophysics

Scientific paper

A coarsely-sampled map of the region \| l \| < 2, \| b \| < 0.1 has been made in the 492 GHz (3}P_{1) - (3}P_{0) transition of [C I] with the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO). The distribution of [C I] emission is similar on the large scale to that of CO. Systematic differences between [C I] and CO emissivities in Galactic Center clouds are described as a function of cloud properties and environment. On average, the C/(12) CO ratio is lower in the Galactic Center region than in the outer galactic disk. This difference can be attributed in part to optical depth effects, as shown by the C/(13CO) ratio, and in part to the existence in the Galactic Center region of molecular and dense atomic gas not bound into clouds. This research was supported in part by the National Science Foundation under a cooperative agreement with the Center for Astrophysical Research in Antarctica (CARA), grant number NSF OPP 89-20223. CARA is a National Science Foundation Science and Technology Center.

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