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Dynamical Effects of Mergers

Published online by Cambridge University Press:  25 May 2016

J.E. Barnes
J.E. Barnes*
Affiliation:
Institute for Astronomy, University of Hawai'i, 2680 Woodlawn Drive, Honolulu, HI 96822, USA

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The bridges and tails of interacting galaxies were elegantly explained when Toomre & Toomre (1972) showed that such features arise from tides acting on disk galaxies. Emboldened by this success, Toomre & Toomre proposed that certain twin-tailed fuzzballs without obvious interaction partners were in fact the merged relics of interacting pairs, and that such relics eventually become elliptical galaxies. Observations of twin-tailed systems found evidence for both their tidal origins and their elliptical destinies (e.g. Schweizer 1986), while self-consistent numerical simulations substantiated theoretical predictions of rapid orbital decay and the elliptical-like outcome of violent relaxation during merging (e.g. Barnes 1988, and references therein). But while our basic picture of merging seems solid, the precise role of this process in galaxy evolution is not so clear. Dynamical studies provide some insight into this issue; at present we can distinguish three levels of reliability in the numerical work: solid results, good bets, and hopeful guesses.

Type
Mergers in the Local Universe
Information
Symposium - International Astronomical Union , Volume 171: New Light on Galaxy Evolution , 1996 , pp. 191 - 198
Copyright
Copyright © Kluwer 1996 

References

Barnes, J.E. 1988. Ap.J. 331, 699.CrossRefGoogle Scholar
Barnes, J.E. 1989. Nature 338, 123.CrossRefGoogle Scholar
Barnes, J.E. 1992. Ap.J. 393, 484.CrossRefGoogle Scholar
Barnes, J.E. & Hernquist, L. 1991. Ap.J. 370, L65.CrossRefGoogle Scholar
Barnes, J.E. & Hernquist, L. 1996. Ap.J., in press.Google Scholar
Bender, R. 1988. A&A 202, L5.Google Scholar
Bender, R. & Surma, P. 1992. A&A 258, 250.Google Scholar
Bushouse, H.A. 1987. Ap.J. 320, 49.CrossRefGoogle Scholar
Carlberg, R. & Freedman, W.L. 1985. Ap.J. 298, 486.CrossRefGoogle Scholar
Combes, F., Dupraz, C., & Gerin, M. 1990. In “Dynamics and Interactions of Galaxies”, ed. Wielen, R. (Springer: Berlin), p. 205.CrossRefGoogle Scholar
Davies, R.L., Sadler, E.M., & Peletier, R.F. 1993. MNRAS 262, 650.CrossRefGoogle Scholar
de Vaucouleurs, G. 1948. Ann. d'Astrophys. 11, 247.Google Scholar
Dubinski, J. 1994. Ap.J. 431, 617.CrossRefGoogle Scholar
Farouki, R.T. & Shapiro, S. 1982. Ap.J. 259, 103.CrossRefGoogle Scholar
Franx, M., Illingworth, G.D., & de Zeeuw, T. 1991. Ap.J. 383, 112.CrossRefGoogle Scholar
Gerhard, O.E. 1983a. MNRAS 202, 1159.CrossRefGoogle Scholar
Gerhard, O.E. 1983b. MNRAS 203, 19P.CrossRefGoogle Scholar
Hernquist, L. 1989. Nature 340, 687.CrossRefGoogle Scholar
Hernquist, L. 1993a. Ap.J. 409, 548.CrossRefGoogle Scholar
Hernquist, L. 1993b. Ap.J. 404, 717.CrossRefGoogle Scholar
Hernquist, L. & Barnes, J. 1990. Ap.J. 349, 562.CrossRefGoogle Scholar
Hernquist, L. & Barnes, J. 1991. Nature 354, 210.CrossRefGoogle Scholar
Hibbard, J.E. 1995. , .Google Scholar
Hibbard, J.E. et al. 1994. A.J. 107, 67.CrossRefGoogle Scholar
Hibbard, J.E. & Mihos, J.C. 1995. A.J. 110, 140.CrossRefGoogle Scholar
Katz, N. & Gunn, J.E. 1991. Ap.J. 377, 365.CrossRefGoogle Scholar
Larson, R.B. 1987. In “Starbursts and Galaxy Evolution”, eds. Thuan, T.X., Montmerle, T., Van, J.T.T., (Editions Frontieres: Gif sur Yvette), p. 467.Google Scholar
Levison, H. 1987. Ap.J. 320, L93.CrossRefGoogle Scholar
Lynden-Bell, D. 1967. MNRAS 136, 101.CrossRefGoogle Scholar
May, A. & van Albada, T.S. 1984. MNRAS 209, 15.CrossRefGoogle Scholar
Mihos, J.C. & Hernquist, L. 1994a. Ap.J. 431, L9.CrossRefGoogle Scholar
Mihos, J.C. & Hernquist, L. 1994b. Ap.J. 437, L47.CrossRefGoogle Scholar
Monaghan, J.J. 1992. ARA&A 30, 543.Google Scholar
Negroponte, J. & White, S.D.M. 1983. MNRAS 205, 1009.CrossRefGoogle Scholar
Nelson, R.P. & Papaloizou, J.C.B. 1994. MNRAS 270, 1.CrossRefGoogle Scholar
Noguchi, M. 1988. A&A 203, 259.Google Scholar
Noguchi, M. 1991. MNRAS 251, 360.CrossRefGoogle Scholar
Sanders, D.B. et al. 1988. Ap.J. 324, L55.CrossRefGoogle Scholar
Schweizer, F. 1982. Ap.J. 252, 455.CrossRefGoogle Scholar
Schweizer, F. 1986. Science 231, 227.CrossRefGoogle Scholar
Scoville, N.Z. et al. 1991. Ap.J. 366, L5.CrossRefGoogle Scholar
Simkin, S.M., Su, H.J. & Schwarz, M.P. 1980. Ap.J. 237, 404.CrossRefGoogle Scholar
Steiman-Cameron, T.Y., Kormendy, J. & Durisen, R.H. 1992. A.J. 104, 1339.CrossRefGoogle Scholar
Stockton, A. 1974. Ap.J. 187, 219.CrossRefGoogle Scholar
Toomre, A. & Toomre, J. 1972. Ap.J. 179, 623.CrossRefGoogle Scholar
Toth, G. & Ostriker, J.P. 1992, ApJ. 389, 5.CrossRefGoogle Scholar
Urdy, S. 1993. A&A 268, 35.Google Scholar
Weil, M.L. & Hernquist, L. 1994. ApJ. 431, L79.CrossRefGoogle Scholar
White, S.D.M. 1978. MNRAS 184, 185.CrossRefGoogle Scholar
White, S.D.M. 1980. MNRAS 191, 1P.Google Scholar
White, S.D.M. 1982. In “Morphology and Dynamics of Galaxies”, eds. Martinet, L. & Mayor, M. (Geneva Observatory: Sauverny), p. 291.Google Scholar
White, S.D.M. & Rees, M.J. 1978. MNRAS 183, 341.CrossRefGoogle Scholar