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CS Multitransition Observations of the Circumnuclear Disk

Published online by Cambridge University Press:  23 September 2016

E. Serabyn ,
R. Güsten  and
N. J. Evans II
E. Serabyn
Affiliation:
California Institute of Technology Downs Laboratory of Physics, 320-47 Pasadena, CA 91125
R. Güsten
Affiliation:
Max-Planck-Institut für Radioastronomie Auf dem Hügel 69 D-5300 Bonn 1, F.R.G.
N. J. Evans II
Affiliation:
Astronomy Department University of Texas Austin, TX 78712

Abstract

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Three rotational transitions of the CS molecule were observed toward the negative longitude half of the molecular disk which orbits about the galactic center between radii of 2 and 10 pc. A comparison of the relative line strengths allows a determination of the radial run of density in the circumnuclear disk. In order to observe all of the transitions with a similar beamsize, the two lower frequency transitions were measured with the IRAM 30-m telescope, and the highest frequency transition with the NRAO 12-m. Table I lists the observing parameters.

Type
Sagittarius A West and the Circumnuclear Disk
Information
Symposium - International Astronomical Union , Volume 136: The Galactic Center , 1989 , pp. 417 - 419
Copyright
Copyright © Kluwer 1989 

References

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Lutgen, J. B. 1987, Ph.D. thesis, University of California, Berkeley.Google Scholar
Serabyn, E., Güsten, R., Walmsley, C. M., Wink, J. E., and Zylka, R. 1986, Astr. Ap. , 169, 85.Google Scholar