Advertisement

Dynamical Effects of Mergers

  • J. E. Barnes
Conference paper
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 171)

Abstract

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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

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

Copyright information

© Springer Science+Business Media Dordrecht 1996

Authors and Affiliations

  • J. E. Barnes
    • 1
  1. 1.Institute for AstronomyUniversity of Hawai’iHonoluluUSA

Personalised recommendations