Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-30T12:36:36.587Z Has data issue: false hasContentIssue false
  • English
  • Français

A Statistical Study of Merging Galaxies-Theory and Observations

Published online by Cambridge University Press:  12 April 2016

Tapan K. Chatterjee
Tapan K. Chatterjee*
Affiliation:
Facultad de Ciencias, Fisico-Matematicas Universidad A. Puebla, (A.P. 1152), Puebla, Mexico

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A study of the expected frequency of merging galaxies is conducted, using the impulsive approximation. Results indicate that if we consider mergers involving galaxy pairs without halos in a single crossing time or orbital period, the expected frequency of mergers is two orders of magnitude below the observed value for the present epoch. If we consider mergers invovling several orbital periods or crossing times, the expected frequency goes up by an order of magnitude. Preliminary calculation indicate that if we consider galaxy mergers between pairs with massive halos, the merger is very much hastened.

Type
VII. Classical Theory of Pairs
Information
International Astronomical Union Colloquium , Volume 124: Paired and Interacting Galaxies , 1990 , pp. 519 - 535
Copyright
Copyright © NASA 1990

References

Aarseth, S. J., and Fall, S. M. 1980, Astrophys. J., 236 43.Google Scholar
Aguilar, L. A., and White, S.D.M. 1985, Astrophys. J., 295 374.Google Scholar
Alladin, S. M. 1965, Astrophys. J., 141 768.Google Scholar
Alladin, S. M., and Narashimhan, K.S.V.S. 1980, Phys. Reports, 92 339.Google Scholar
Alladin, S. M., and Parthasarathy, M. 1978, Monthly Notices Roy. Astron. Soc., 184, 871. (Corrigendum 1979, Monthly Notices Roy. Astron. Soc., 188, 303.)Google Scholar
Allen, C., and Martos, M. A. 1986, Rev. Mex. Astron. Astrof., 13 137.Google Scholar
Ballabh, G. M. 1975, Astrophys. Space Science, 38 407.Google Scholar
Borne, K. D. 1984, Astrophys. J., 287 503.Google Scholar
Chatterjee, T. K. 1987, Astrophys. Space Science 137 267.Google Scholar
Chatterjee, T. K. 1989, Astrophys. Space Science (in press, 1990?).Google Scholar
Chatterjee, T. K. 1990a, Astrophys. Space Science, in press.Google Scholar
Chatterjee, T. K. 1990b, Astrophys. Space Science, submitted.Google Scholar
Dekel, A., Lecar, M., and Shaham, J. 1980, Astrophys. J, 241 946.Google Scholar
Mitton, S. (ed.) 1977, “The Cambridge Encyclopedia of Astronomy,” Jonathan Cape Ltd., London, p. 345.Google Scholar
Ogorodnikov, K. F. 1965, “Dynamics of Stellar Systems,” Per., London, p. 100.Google Scholar
Rohlfs, K., and Kreitschmann, J. 1981, Astrophys. Space Science, 79 289.Google Scholar
Roos, N., and Norman, C. A. 1979, Astron. Astrophys., 76 75.Google Scholar
Toomre, A. 1977, in Tinsley, B. M. and Larson, R. B. (eds.), “The Evolution of Galaxies and Stellar Populations,” Yale Univ. Obs., p. 401.Google Scholar
Tremaine, S. D. 1980, in Fall, S. M. and Bell, D. Lynden (eds.), “The Structure and Evolution of Normal Galaxies,” Univ. of Cambridge, p. 67.Google Scholar
Van Albada, T. S., and van Gorkom, J. H. 1977, Astron. Astrophys., 54 121.Google Scholar
Villumsen, J. V., 1982, Monthly Notices Roy. Astron. Soc, 199 493.Google Scholar
White, S.D.M. 1978, Monthly Notices Roy. Astron. Soc, 184 185.Google Scholar