Abstract
About 30% of all galaxies exhibit spiral forms, 60% are elliptical and 10% irregular. It is the objective of galactic dynamics to explain these structural features. A first generation of self-consistent N-body simulations indicates that ellipticals are equilibrium configurations of gravita-tionally interacting multi-particle systems for which unfortunately a theory does not yet exist. Recent progress has been made on the modal analysis of Freeman disks. In a second generation of N-body simulations spiral density waves have been reproduced in disk configurations. As an alternative to the Lin-Shu conjecture based on the QSSS-hypothesis we have considered a mechanism by which spiral density waves are produced in the surrounding disk as a consequence of the slow increase of the quadrupole moment of a central oval shaped equilibrium configruation immersed in the disk.
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References
Berman, R.H., and Mark, J.W.-K., 1977, ApJ 216, 257.
Berman, R.H., and Mark, J.W.-K., 1979, ApJ 231, 388.
Contopoulos, G. and Mertzanides, C. 1977, Astr.Ap. 61, 477.
Contopoulos, G. and Papayannopoulos, T. 1980, Astr.Ap. 92, 33.
Chandrasekhar, S. 1942, Principles of Stellar Dynamics, Chicago: University of Chicago Press.
Chandrasekhar, S. 1969, Ellipsoidal Figures of Equilibrium (New Haven: Yale University Press).
Frahm, R. and Thielheim, K.O. 1978, ApJ (Letters) 220, L43.
Frahm, R., Fuchs, B. and Thielheim, K.O. 1979, Ap.Space Sci. 63, 185.
Frahm, R., Fuchs, B. and Thielheim, K.O. 1979a, Astr. Ap. 72, 263.
Hohl, F. and Hockney, R.W. 1969, J. Comput. Phys. 4, 306.
Hohl, F. 1971, ApJ 168, 343.
Hunter, C. 1963, MNRAS, 126, 299.
Hunter, C. 1970, ApJ 162, 445.
Hunter, C. 1979, ApJ 227, 73.
Iye, M. 1978, Pub. Astr. Soc. Japan, 30, 223.
James, R.A. 1977, J. Comput. Phys. 25, 71.
Kalnajs, A.J. 1976, ApJ 205, 751.
Kalnajs, A.J. 1971, ApJ 160, 292.
Kalnajs, A.J. 1973, Proc. Astr. Soc. Austr. 2, 174.
Kalnajs, A.J. and Athanassoula-Georgala, E. 1974, MNRAS 168, 287.
Kato, S. 1968, Ap. Space Sci. 2, 37.
Kato, S. 1970, Pub. Astr. Soc. Japan 22, 285.
Lin, C.C., Yuan, C., Shu, F.H. 1969, ApJ 155, 721.
Lin, C.C. and Shu, F.H. 1964, ApJ 140, 646.
Lindblad, B. 1941, Stock. Obs. Ann. 13, No. 10.
Lindblad, B. 1962, Stock. Obs. Ann. 14, No. 1.
Lindblad, B. 1950, Stock. Obs. Ann. 16, No. 1.
Lindblad, B. 1959, Handbuch der Physik, ed. S. Flügge (Berlin: Springer-Verlag) 53, 21.
Lynden-Bell, D. 1962, MNRAS 123, 447.
Lynden-Bell, D. and Kalnajs, A. 1972, MNRAS 157, 1.
Lynden-Bell, D. 1979, MNRAS 187, 101.
Marochnik, L.S. 1964, Soviet Astr. — AJ 8, 202.
Marochnik, L.S. 1967, Soviet Astr. — AJ 10, 738.
Marochnik, L.S., Suchkov, A.A. 1974, Usp. Fiz. Nauk 112, 275, Transi. 1974 Sov. Phys. Usp. 17, 85 (from Russian).
Mayall, N.U. and Aller, N.H. 1942, ApJ 95, 5.
Miller, R.H. and Prendergast, K.H. 1968, ApJ 151, 699.
Oort, J.H. 1927, BAN 3, 275.
Ostriker, J. and Peebles, P.J.E. 1973, ApJ 186, 467.
Polzin, D. and Thielheim, K.O. 1981, A&A 101, 409.
Sandage, A. 1961, The Hubble Atlas of Galaxies (Washington: Carnegie Institution of Washington).
Schäfer, I. and Thielheim, K.O. 1981, in preparation.
Schmidt-Kaler, Th. and Wiegandt, R. 1980, A&A 82, 238.
Schmidt-Kaler, Th. 1975, Vistas in Astronomy 19, 69.
Sellwood, J.A. 1980, Astr. Astrophys. 89, 296.
Scilwood, J.A. 1981, Astr. Astrophys. 99, 362.
Spreckels, H. and Thielheim, K.O. 1981, submitted for publ.
Takahara, F. 1976, Prog. Theor. Phys. 56, 1665.
Thielheim, K.O. 1980, Astron. Mitt. 50, 161.
Thielheim, K.O. 1980, Astrophys. Space Sci. 73, 499.
Thielheim, K.O. 1981, Astrophys. Space Sci. 73, 363.
Thielheim, K.O. and Wolff, H. 1980, Astron. Mitt. 48, 168.
Thielheim, K.O. and Wolff, H. 1981a, ApJ 245, 39.
Thielheim, K.O. and Wolff, H. 1981b, MNRAS, in press.
Toomre, A. 1963, ApJ 138, 385.
Toomre, A. 1964, ApJ 139, 1217.
Toomre, A. 1969, ApJ 158, 899.
Toomre, A. 1977, Ann. Rev. Astron. Astrophys. 15, 437.
de Vaucouleurs, G. 1963, ApJ Suppl. Ser. 8, 31.
de Vaucouleurs, G. 1970, Proc. IAU Symp. 38, 18.
Wielen, R. 1974, Konf. Bures Sur Yvette, 357.
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Thielheim, K.O. (1982). New Developments in the Theory of Spiral Galaxies. In: Wolfendale, A.W. (eds) Progress in Cosmology. Astrophysics and Space Science Library, vol 99. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7873-7_21
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DOI: https://doi.org/10.1007/978-94-009-7873-7_21
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