Hostname: page-component-8448b6f56d-tj2md Total loading time: 0 Render date: 2024-04-19T06:30:07.371Z Has data issue: false hasContentIssue false
  • English
  • Français

NH3 Observations of the Sgr A Complex Region with the Nobeyama Millimeter Array

Published online by Cambridge University Press:  23 September 2016

S. K. Okumura ,
M. Ishiguro ,
E. B. Fomalont ,
Y. Chikada ,
T. Kasuga ,
K.-I. Morita ,
R. Kawabe ,
H. Kobayashi ,
M. Inoue  and
T. Hasegawa
S. K. Okumura
Affiliation:
Department of Astronomy, Faculty of Science, University of Tokyo, Bunkyou–ku, Tokyo113, JAPAN
M. Ishiguro
Affiliation:
Nobeyama Radio Observatory, Minamimaki–mura, Minamisaku–gun, Nagano384–13, JAPAN
E. B. Fomalont
Affiliation:
National Radio Astronomy Observatory, Edgemont Road, Charlottesville, VA 22903, U.S.A.
Y. Chikada
Affiliation:
Nobeyama Radio Observatory, Minamimaki–mura, Minamisaku–gun, Nagano384–13, JAPAN
T. Kasuga
Affiliation:
Nobeyama Radio Observatory, Minamimaki–mura, Minamisaku–gun, Nagano384–13, JAPAN
K.-I. Morita
Affiliation:
Nobeyama Radio Observatory, Minamimaki–mura, Minamisaku–gun, Nagano384–13, JAPAN
R. Kawabe
Affiliation:
Nobeyama Radio Observatory, Minamimaki–mura, Minamisaku–gun, Nagano384–13, JAPAN
H. Kobayashi
Affiliation:
Nobeyama Radio Observatory, Minamimaki–mura, Minamisaku–gun, Nagano384–13, JAPAN
M. Inoue
Affiliation:
Nobeyama Radio Observatory, Minamimaki–mura, Minamisaku–gun, Nagano384–13, JAPAN
T. Hasegawa
Affiliation:
Institute of Astronomy, Faculty of Science, University of Tokyo, Mitaka, Tokyo181, JAPAN

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We report NH3 observations of the Sgr A complex region including Sgr A West and the 20 km/s and 50 km/s molecular clouds (M–0.13–0.08 and M–0.02–0.07) using the Nobeyama Millimeter Array and the 45m telescope. NH3(1,1) and (2,2) lines were simultaneously observed to estimate the kinetic temperature. Our results suggest strong interaction between the molecular clouds and the continuum sources in the Sgr A complex. The interaction with continuum sources might be an important factor in determining the physical conditions of molecular gas in the galactic center region.

Type
The Environment of the SGR A Complex
Information
Symposium - International Astronomical Union , Volume 136: The Galactic Center , 1989 , pp. 371 - 377
Copyright
Copyright © Kluwer 1989 

References

Armstrong, J. T., Ho, P. T. P., and Barrett, A. H. 1985, Ap. J., 288, 159 Google Scholar
Brown, R. L., and Liszt, H. S. 1984, Ann. Rev. Astr. Ap., 22, 223 Google Scholar
Ekers, R. D., van Gorkom, J. H., Schwarz, U. J., and Goss, M. 1983, Str. Ap., 122, 143 Google Scholar
Goss, W. M., Schwarz, U. J., Ekers, R. D., and van Gorkom, J. H. 1983, in IAU Symposium 101, Supernova Remnant and Their X-Ray Emission, ed. Danziger, J. and Gorenstein, P. (Dordrecht: Reidel), p65 Google Scholar
Goss, W. M., Schwarz, U. J., van Gorkom, J. H., and Ekers, R. D. 1985, M. N. R. A. S., 215, 69P.Google Scholar
Güsten, R., and Henkel, C. 1983, Astr.Ap., 125, 126 Google Scholar
Güsten, R., and Downes, D. 1980, Astr.Ap., 87, 6 Google Scholar
Güsten, R., Walmsley, C.M., and Pauls, T. 1981, Astr.Ap., 103, 197 Google Scholar
Ho, P. T. P., Jackson, J. M. Barrett, A. H., and Armstrong, J. T. 1985, Ap. J., 288, 575 Google Scholar
Liszt, H. S., van der Hulst, J. M., Burton, W. B., and Ondrechen, M. P. 1983, Astr. Ap., 126, 341 Google Scholar
Mauersberger, R., Henkel, C., Wilson, T. L., and Walmsley, C.M. 1986, Astr. Ap., 162, 199 Google Scholar
Okumura, S.K. et al. 1988, in preparation Google Scholar
Szczepanski, J. C., Ho, P. T. P., Hasch ick, A. D., and Baan, W. A. 1988, these proceedings.Google Scholar
Walmsley, C.M., and Ungerechts, H. 1983, Astr.Ap., 122, 164 Google Scholar
White, G. J., Rainey, R., Hayashi, S. S., and Kaifu, N. 1987, Astr. Ap., 173, 337 Google Scholar
Yusef-Zadeh, F., and Morris, M. 1987, Ap.J., 320, 545 Google Scholar