%0 Journal Article
%T Time-Frequency Analysis of Asymmetric Triaxial Galaxy Model Including Effect of Spherical Dark Halo Component
%A Beena R. Gupta
%A Vinay Kumar
%J International Journal of Astronomy and Astrophysics
%P 106-115
%@ 2161-4725
%D 2015
%I Scientific Research Publishing
%R 10.4236/ijaa.2015.52014
%X A method
of time-frequency analysis (TFA) based on wavelets is applied to study the
phase space structure of three-dimensional asymmetric triaxial galaxy enclosed
by spherical dark halo component. The investigation is carried out in the
presence and absence of dark halo component. Time-frequency analysis is based
on the extraction of instantaneous frequency from the phase of the continuous
wavelet transform. This method is comparatively fast and reliable. </span><span lang=\"EN-GB\">This
method can differentiate periodic from quasi-periodic, chaotic sticky from
chaotic non-sticky, ordered from chaotic and also, it can accurately determine
the time interval of the resonance trapping and transitions too.</span><span lang=\"EN-US\"> Apart from that, the phenomenon
of transient chaos can be explained with the help of time-frequency analysis.
Comparison with the method of total angular momentum (denoted as <i>L<sub>tot</sub></i>) proposed recently is
also presented.
%K Time-Frequency Analysis
%K Triaxial Galactic Potential
%K Instantaneous Frequency
%K Total Angular Momentum
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=57070