The gas distribution in the central region of the Galaxy. V - (C-12)O in the direction of the Sagittarius source complex

Details The gas distribution in the central region of the Galaxy. V - (C-12)O in the direction of the Sagittarius source complex The gas distribution in the central region of the Galaxy. V - (C-12)O in the direction of the Sagittarius source complex

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26as...95....9b&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 95, no. 1, p. 9-39.

Astronomy and Astrophysics

Astrophysics

23

Astronomical Spectroscopy, Carbon Monoxide, Galactic Nuclei, Interstellar Gas, Milky Way Galaxy, Astronomical Models, Emission Spectra, Galactic Structure, Line Spectra, Molecular Spectra, Sagittarius Constellation

Scientific paper

We have observed (C-12)O j = 1-0 emission on a 2-arcmin grid over the Sgr A, B, and C source complex. The region exhibits intense emission from clouds associated with the continuum sources, but the dominant behavior arises in several larger-scale, coherent features (like the 'rotating nuclear disk' and 'expanding molecular ring') and much of the most interesting structure occurs perpendicular to the galactic plane. To explain the observations we invoke a model which modifies our earlier view of the inner-Galaxy material in detail but not in spirit: major kinematic features arise from smooth charges in large-scale velocity laws and galactic geometry, and are thus not discrete, spatially isolated entities. In the new model, the distribution of the gaseous material occurring in the inner few hundred pc is flat, aligned with the nominal galactic equator, and mostly rotating. At larger radii (roughly out to 1.5 kpc) the gas layer both warps and flares, resembling closely our earlier tilted disk models, and a strong (greater than 100 km/s) component of non-circular motion is pervasive.

Affiliated with

Also associated with

No associations

Rating

The gas distribution in the central region of the Galaxy. V - (C-12)O in the direction of the Sagittarius source complex 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 The gas distribution in the central region of the Galaxy. V - (C-12)O in the direction of the Sagittarius source complex, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The gas distribution in the central region of the Galaxy. V - (C-12)O in the direction of the Sagittarius source complex will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1868723