Numerical Experiments on the Formation of Tails and Bridges in Galaxies

  • P. M. S. Namboodiri
  • R. K. Kochhar
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 127)


Interacting galaxies show peculiar features like tails, bridges and counterarms of various sizes and shapes. Numerical experiments have been performed, using restricted-three-body approximation,to investigate as to how the formation of tails and bridges depends on the mass ratio µ = M1/M0, where M1 is the mass of the perturber and M0 is the mass of the test galaxy. Results indicate that (i) tails and bridges occur when µ is of the order of unity, (ii) increasing perturber mass leads to greater disruption of test galaxy; and (iii) there is a sharp decrease in the density of the test galaxy at the tidal radius after the encounter has taken place.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Alladin, S.M., N. Ramamani,and T. Meinya Singh: 1985, J. Astrophys. Astron. 6, 5.ADSCrossRefGoogle Scholar
  2. Clutton-Brock, M.: 1972, Astrophys.Space Sci. 17, 292.MathSciNetADSCrossRefGoogle Scholar
  3. Namboodiri, P.M.S.,and R.K. Kochhar: 1985, Bull.Astron.Soc.India, 13, (in the press).Google Scholar
  4. Pfleiderer, J., and H. Siedentopf: 1961, Z.Astrophys. 51, 201.ADSGoogle Scholar
  5. Pfleiderer, J.: 1963, Z. Astrophys. 58,12.ADSGoogle Scholar
  6. Tashpulatov, N: 1970a, Soviet Astron. 13, 968.ADSGoogle Scholar
  7. Tashpulatov, N: 1970b, Soviet Astron. 14, 227.ADSGoogle Scholar
  8. Toomre, A.,and J. Toomre: 1972, Astrophys.J. 178, 623.ADSCrossRefGoogle Scholar
  9. Vorontsov-Velyaminov, B.: 1958, Soviet Astron. 2, 805.ADSGoogle Scholar
  10. Wright, A.E.: 1972, Monthly Notices Roy. Astron. Soc. 157, 309.ADSGoogle Scholar
  11. Yabushita,S.: 1972, Monthly Notices Roy. Astron. Soc. 153, 97.ADSGoogle Scholar
  12. Zwicky, F.: 1959, Hand buch der Physik, 53, 374.ADSGoogle Scholar

Copyright information

© D. Reidel Publishing Company 1986

Authors and Affiliations

  • P. M. S. Namboodiri
    • 1
  • R. K. Kochhar
    • 1
  1. 1.Indian Institute of AstrophysicsBangaloreIndia

Personalised recommendations