Physical Conditions of Molecular Gas in the Galactic Center

Details Physical Conditions of Molecular Gas in the Galactic Center Physical Conditions of Molecular Gas in the Galactic Center

2007-01-30

arxiv.org/abs/astro-ph/0701845v1

Astronomy and Astrophysics

Astrophysics

8 pages, 6 figures, to appear in PASJ

Scientific paper

We estimated physical conditions of molecular gas in the central molecular zone (CMZ) of the Galaxy, using our CO J=3-2 data obtained with the Atacama Submillimeter Telescope Experiment (ASTE) in conjunction with J=1-0 12CO and 13CO data previously observed with the NRO 45m telescope. The large velocity gradient (LVG) approximation was employed. Distributions of gas density, kinetic temperature, and CO column density are derived as functions of position and velocity for the entire coverage of the CO J=3-2 data. We fairly determined physical conditions for 69 % of data points in the CMZ with >= 1 sigma CO detections. Kinetic temperature was found to be roughly uniform in the CMZ, while gas density is higher in the 120-pc star forming ring than in the outer dust lanes. Physical conditions of high J=3-2/J=1-0 features are also discussed.

Affiliated with

Also associated with

No associations

Rating

Physical Conditions of Molecular Gas in the Galactic Center does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Physical Conditions of Molecular Gas in the Galactic Center, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical Conditions of Molecular Gas in the Galactic Center will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-469690