Abstract
The innermost central part of the Galaxy has very complicated morphology and kinematics. We make an emphasis on the dynamical nature of the ‘mini-spiral’. Two cases are considered: (i) the putative black hole lies at the center of the dense stellar cluster and (ii) it is off the center. In the first case, the mechanism of the spiral arm generation can be over-reflection instability, and in the second case the axial asymmetry of the gravitational potential serves as a source of excitation of the density wave. In the both cases, the generated spiral density wave is consistent with the observed ‘mini-spiral’ if the upper limit to the black hole mass is ≅105M⊙.
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Aitken, D.K. (1989): in Proc. IAU Symp. 136 The Center of the Galaxy, ed. M. Morris, Kluwer, Dordrecht, p. 457.
Bailey, M.E. (1980): MNRAS 190, 217
Blitz, L., Binney, J., Lo, K.Y., Ho, P.T.P. (1993): Nat 361, 417
Brown, R.L. (1982): ApJ 262, 110
Eckart, A., Genzel, R., Hoffmann, R., Sams, B.J., Tacconi-Garman, L.E. (1993): ApJ 407, L77
Eckart, A., Genzel, R., Hoffmann, R., Sams, B.J., Tacconi-Garman, L.E. (1995): ApJ 445, L23
Ekers, R.D., van Gorkom, J.H., Schwarz, U.J., Goss, W.M. (1983): A&A 122, 143
Fridman, A.M., Khoruzhii, O.V., Lyakhovich, V.V., Ozernoy, L., Blitz, L. (1994): in Physics of the Gaseous and Stellar Disks of the Galaxy, ed. I. King ASP Conference Series 66, 305
Fridman, A.M., Khoruzhii, O.V., Lyakhovich, V.V., Ozernoy, L., Blitz, L. (1996): in Proc. IAU Symp. 169 Unsolved Problems of the Milky Way, ed. L. Blitz (in press)
Genzel, R. (1989): in Proc. IAU Symp. 136 The Center of the Galaxy, ed. M. Morris, Kluwer, Dordrecht, p. 393
Genzel, R., Townes, C.H. (1987): ARA&A 25, 377
Genzel, R., Watson, D.M., Crawford, M.K., Townes, C.H. (1985): ApJ 297, 766
Goldreich, P., Lynden-Bell, D. (1965): MNRAS 130, 125
Goldwurm, A., Cordier, B., Paul, J., Bouchet, L., Roques, J.-P., Vedrenne, G., Mandron, P., Sunyev, R., Churasov E., Gilfanov M., Finogenov A., Vikhlinin A., Dyachkov A., Khavenson, N., Kovtunenko, V. (1994): Nat 371, 586
Güsten, R., Genzel, R., Wright, M.C.H., Jaffe, D.T., Stutzki, J., Harris, A.I. (1987): ApJ 318, 124
Heyvaerts, J., Norman C., Pudritz, R. (1988): ApJ 330, 718
Jackson, J.M., Geis, N., Genzel, R., Harris, A.I., Madden, S., Poglitsch, A., Stacey, G., Townes, C.H. (1993): ApJ 402, 173
Julian, W.H., Toomre, A. (1966): ApJ 146, 810
Krabbe, A., Genzel, R., Drapatz, S., Rotaciuc, V. (1991): ApJ 382, L19
Lacy, J.H., Achtermann, J.M., Serabyn, E. (1991): ApJ 380, L71
Landau, L.D., Lifshitz, E.M. (1984): Fluid Mechanics, Pergamon Press, Oxford
Lo, K.Y. (1986): Science 233, 1394
Lo, K.Y., Claussen, M.J. (1983): Nat 306, 647
Lugten, J.B., Stacey, G.J., Harris, A.I., Genzel, R., Townes, C.H. (1987): in AIP Proc. 155 The Galactic Center, ed. D.C. Becker, AIP, New York, p. 118
Lynden-Bell, D., Rees, M.J. (1971): MNRAS 152, 461
Mastichiadis, A., Ozernoy, L.M. (1994): ApJ 426, 599
McGinn, M.T., Sellgren, K., Becklin, E.E., Hall, D.N.B. (1989): ApJ 338, 824
Narayan, R., Yi, I., Mahadevan, R. (1995): Nat 374, 623
Orr, W.McF. (1907): Proc. Roy. Irish Acad., Sect A. 27, p. 9 and p. 69
Ozernoy, L.M. (1989): in Proc. IAU Symp. 136 The Center of the Galaxy, ed. M. Morris, Kluwer, Dordrecht, p. 555
Ozernoy, L., Genzel, R. (1996): in Proc. IAU Symp. 169 Unsolved Problems of the Milky Way, ed. L. Blitz (in press)
Quinn, P.J., Sussman, G.J. (1985): ApJ 288, 377
Roberts, D.A., Goss, W.M. (1993): ApJS 86, 133
Schwarz, U.L., Bregman J.D., van Gorkom J.H. (1989): A&A 215, 33
Serabyn, E., Güsten, R., Walmsley, C.M., Wink, J.E., Zylka, R. (1986): A&A 169, 85
Serabyn, E., Lacy, J.H. (1985): ApJ 293, 445
Serabyn, E., Lacy, J.H., Townes, C.H., Bharat, R. (1988): ApJ 326, 171
Sutton, E.C., Danchi, W.C., Jaminet, P.A., Masson, C.R. (1990): ApJ 384, 503
Wright, M.C.H., Marr, J., Backer, D.C. (1989): in Proc. IAU Symp. 136 The Center of the Galaxy, ed. M. Morris, Kluwer, Dordrecht, p. 407
Zylka, R., Mezger, P.G., Ward-Thompson, D., Duschl, W.J., Lesch, H. (1995): A&A 297, 83
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Fridman, A.M., Khoruzhii, O.V., Lyakhovich, V.V., Ozernoy, L., Blitz, L. (1996). The galactic center dynamics. In: Sandqvist, A., Lindblad, P.O. (eds) Barred Galaxies and Circumnuclear Activity. Lecture Notes in Physics, vol 474. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0101979
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DOI: https://doi.org/10.1007/BFb0101979
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