Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/4207
Title: Oscillations In Galaxies
Authors: Namboodiri, P. M. S
Keywords: Stellar dynamics;Galaxies;Oscillations;Numerical simulations
Issue Date: Jan-2000
Publisher: Kluwer Academic Publishers
Citation: Celestial Mechanics and Dynamical Astronomy, Vol. 76, No. 1, pp. 69 - 77
Abstract: Oscillations in galaxies have been investigated by numerical simulations. The various models used have density distributions corresponding to that of polytrope of index n in the range 0 ≤ n ≤ 4 and their evolution has been followed for more than 70 crossing times. The kinetic energy shows regular and smooth oscillations for models with n = 0, 1 and 2 whereas in other models it shows noisy oscillation. The oscillation in kinetic energy is observed to have a period of 3 crossing time irrespective of the density and size of the galaxy. The amplitude of oscillation is seen to decrease as the central density of the galaxy increases.
Description: Restricted Access
The original publication is available at springerlink.com
URI: http://hdl.handle.net/2248/4207
ISSN: 0923-2958
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http://dx.doi.org/10.1023/A:1008341814117
Appears in Collections:IIAP Publications

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