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Ionized and Neutral Gas in the Central 10 PC of the Galaxy

Published online by Cambridge University Press:  12 April 2016

K. Y. Lo ,
R. Plante ,
J. Lacy ,
M. Wright  and
N. Killeen
K. Y. Lo
Affiliation:
University of Illinois, Astronomy dept., Urbana, IL 61801, U. S. A.
R. Plante
Affiliation:
University of Illinois, Astronomy dept., Urbana, IL 61801, U. S. A.
J. Lacy
Affiliation:
University of Texas, Astronomy dept., Austin, TX 78712, U. S. A.
M. Wright
Affiliation:
University of California, Radio Astronomy Lab., Berkeley, CA 94720, U. S. A.
N. Killeen
Affiliation:
ATNF, P. O. Box 76, 2121 Epping, NSW, Australia

Abstract

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Observations of the 12.8 μm [NeII] line emission, the OH absorption against Sgr A and the HCN emission were compared to determine the relationship between the ionized and neutral gas in the central 10 pc of the Galaxy. The distribution of the neutral gas is too asymmetric to be a ring or disk. Along the western arc, the ionized gas velocity is very different from that of the neutral gas, suggesting it may not be the ionized inner edge of the circum-nuclear neutral gas.

Type
3. Astronomical Results and Prospects
Information
International Astronomical Union Colloquium , Volume 140: Astronomy with Millimeter and Submillimeter Wave Interferometry , 1994 , pp. 156 - 160
Copyright
Copyright © Astronomical Society of the Pacific 1994

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