Astronomy and Astrophysics – Astronomy
Scientific paper
May 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...196.2501l&link_type=abstract
American Astronomical Society, 196th AAS Meeting, #25.01; Bulletin of the American Astronomical Society, Vol. 32, p.708
Astronomy and Astrophysics
Astronomy
Scientific paper
We present the distribution of 13CO column density of the first quadrant (l = 8 - 90) of the Galactic Plane using the 13CO Bell Laboratories Survey and UMass-Stony Brook 12CO Survey. We estimate the column density channel by channel (with a velocity step of 1 km/sec) with LTE assumption, generating the coumn density cube data for the first quadrant. Spatial resoultion is smoothed into 6 arcminute for whole direction. The highest column density is estimated to be 9.3x1016 cm-2 per channel, which is one of the densest part of the Galactic Ring region. Good correaltionship is found between 13CO integrated instensity and column density. We discuss some charateristics of the column density distribution. This work is supported by Creative Initiative Research Fund 99-NZ-01-01-A-31 of the Ministry of Science and Techonology, Republic of Korea.
Kim Han Geun
Lee Yeonbae
Stark Alexander
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