FORMATION OF LOPSIDED AND BAR STRUCTURES IN NON-STATIONARY GRAVITATING SYSTEMS. I- ISOTROPIC CASE

Authors

  • M. Sultana Department of Mathematical Sciences, Federal Urdu University of Arts, Science & Technology, Karachi, Pakistan
  • M. Khalid Department of Mathematical Sciences, Federal Urdu University of Arts, Science & Technology, Karachi, Pakistan

DOI:

https://doi.org/10.71330/thenucleus.2013.757

Abstract

This is an examination of the gravitational instability of bar-like and lopsided structures of non-stationary isotropic disk model. Non-stationary analogs of the dispersion equation of these two oscillation modes are discussed, in this paper. Growth rates of both oscillation modes are found with the help of non-stationary dispersion equation. Results are presented in the form of graphs which show dependence of initial virial ratio on rotation parameter . A comparative analysis of the growth rates of both oscillation modes is made and found that lopsided structures overall dominates the bar-like structures.

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Published

16-09-2013

How to Cite

[1]
M. Sultana and M. Khalid, “FORMATION OF LOPSIDED AND BAR STRUCTURES IN NON-STATIONARY GRAVITATING SYSTEMS. I- ISOTROPIC CASE”, The Nucleus, vol. 50, no. 3, pp. 285–288, Sep. 2013.

Issue

Vol. 50 No. 3 (2013)

Section

Articles

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