Chamberlin,2,3

We report the detection of a deep (C I) absorption feature at km s~1 with a line 3P 1 ] 3P 0 v LSR \ 12 width of 6 km s~1 toward extended line emission at a distance of 11@ from Sgr C. The 492 GHz observations were made with the Antarctic Submillimeter Telescope and Remote Observatory. The absorptio...

Full description

Bibliographic Details
Main Authors: Balm Stark Lane, J. Staguhn, J. Stutzki, R. A. Chamberlin, S. P. Balm, A. A. Stark, A. P. Lane, R. Schieder, G. Winnewisser
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Antarctic
The Antarctic
Antarc*
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.40.6039
http://astro.uchicago.edu/cara/research/papers/astroapj491.pdf
Description
Summary:We report the detection of a deep (C I) absorption feature at km s~1 with a line 3P 1 ] 3P 0 v LSR \ 12 width of 6 km s~1 toward extended line emission at a distance of 11@ from Sgr C. The 492 GHz observations were made with the Antarctic Submillimeter Telescope and Remote Observatory. The absorption feature allows the derivation of lower limits for the C I column density in the cold foreground material. The feature is unlikely to be caused by self-absorption within the [C I]emitting cloud because it is observed over a region at least 4@ across and is also seen in emission 22@ north of the Galactic plane in 12CO J \ 21. In order to determine the temperature and the abundance ratio of C I to CO in the foreground gas, we compare the observations with 12CO and 13CO J \ 10 observations obtained with the Bell Labs 7 m antenna and with 12CO and 13CO J \ 21 observations made with the Ko# lner Observatorium fu# r Submillimeter und Millimeter Astronomie 3 m telescope. All these .

Similar Items