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Large-scale fragmentation of gas cloud rotating at the Galactic center

Published online by Cambridge University Press:  03 August 2017

M. Fujimoto  and
Y. Tatematsu
M. Fujimoto
Affiliation:
Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-01
Y. Tatematsu
Affiliation:
Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-01

Abstract

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A rotating and slowly-contracting gas cloud is followed in the deep gravitational potential of the galactic center. When the gas density increases as high as (102 — 103)H2 cm—3, which is more than twenty times as large as the background matter density, the self-gravity of the cloud becomes dominant to govern its dynamical structure. The cloud elongates and then splits into two separated objects, as observed at the centers of IC342, NGC6946, and Maffei 2 where we have two symmetric peaks on the major axis of the 12CO (J=1-0) cloud.

Type
Shocks and Instabilities
Information
Symposium - International Astronomical Union , Volume 147: Fragmentation of Molecular Clouds and Star Formation , 1991 , pp. 215 - 217
Copyright
Copyright © Kluwer 1991 

References

Ball, R., Sargent, A.I., Scoville, N.Z., Lo, K.Y., and Scott, S.L. 1985, Astrophys. J. Letters, 298, L21.CrossRefGoogle Scholar
Chandrasekhar, S. 1969, Ellipsoidal Figures of Equilibrium (Yale University Press, New Haven).Google Scholar
Fujimoto, M., Tatematsu, Y., and Miyama, S.M. 1990, Publ. Astron. Soc. Japan, 42, No.3 in press.Google Scholar
Ishiguro, M., Kawabe, R., Morita, K.-I., Okumura, S.K., Chikada, Y., Kasuga, T., Kanzawa, T., Iwashita, H., Handa, K., Takahashi, T., Kobayashi, H., Murata, Y., Ishizuki, S., and Nakai, N. 1989, Astrophys. J., 344 763.CrossRefGoogle Scholar
Lo, K.Y., Berge, G.L., Claussen, M.J., Heiligman, G.M., Leighton, R.B., Masson, C.R., Moffet, A.T., Phillips, T.G., Sargent, A.I., Scott, S.L., Wannier, P.G., and Woody, D.P. 1984, Astrophys. J. Letters, 282, L59.CrossRefGoogle Scholar
Tatematsu, Y., and Fujimoto, M. 1990, Publ. Astron. Soc. Japan, 42 217.Google Scholar