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Gas Feeding Toward the Galactic Center

Published online by Cambridge University Press:  12 April 2016

P. T. P. Ho
P. T. P. Ho*
Affiliation:
Harvard-Smithsonian Center for Astrophysics

Extract

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The previous two talks in this session have shown the importance of the nucleus of the Milky Way as the host to a possible massive black hole. SgrA* is apparently surrounded by a circumnuclear ring first seen in the HCN J = l-0 emission (Gusten et al. 1987). Infall from the circumnuclear ring could explain the ionized streamers which appear to orbit SgrA* (Lo and Claussen 1983; Serabyn and Lacy 1985). Recent studies in the NH3 emission using the Nobeyama Millimeter Array (Okumura et al. 1989; 1991) and the Very Large Array (Ho et al. 1991) have suggested that a streamer may feed the Galactic center from the southern cloud M-0.13-0.08. Here we show a second streamer originating from the eastern cloud M-0.02-0.07 as well. In both cases, interactions between the molecular clouds and supernovae seem to be important, and can be seen in position-velocity diagrams. This may be the mechanism by which gas is pushed toward the central gravitational field.

Type
3. Astronomical Results and Prospects
Information
International Astronomical Union Colloquium , Volume 140: Astronomy with Millimeter and Submillimeter Wave Interferometry , 1994 , pp. 161 - 165
Copyright
Copyright © Astronomical Society of the Pacific 1994

References

Gusten, R. et al. 1987, Ap. J., 318, 124 Google Scholar
Ho, P.T.P., Ho, L.C., Szczepanski, J.C., Jackson, J.M., Armstrong, J.T., and Barrett, A.H. 1991, Nature, 350, 309 Google Scholar
Lo, K.Y., and Claussen, M. 1983, Nature, 306, 647 Google Scholar
Okumura, S.K., Ishiguro, M., Fomalont, E.B., Chikada, Y., Kasiiga, T., Morita, K-I, Kawabe, R., and Kobayashi, H., Kanzawa, J., Iwashita, H., and Hasegawa, T., 1989, Ap. J., 347, 240 Google Scholar
Okumura, S.K., Ishiguro, M., Fomalont, E.B., Hasegawa, T., Kasuga, T., Morita, K-I, Kawabe, R., and Kobayashi, H. 1991, Ap. J., 378, 127 Google Scholar
Serabyn, E., Gusten, R., Walmsley, C.M., Wink, J.E., and Zylka, R. 1986, Astr. Ap., 169, 85 Google Scholar