Chaotic pulsations in irregular variables

Details Chaotic pulsations in irregular variables Chaotic pulsations in irregular variables

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003assl..283...94a&link_type=abstract

In: Mass-losing pulsating stars and their circumstellar matter. Workshop, May 13-16, 2002, Sendai, Japan, edited by Y. Nakada, M

Astronomy and Astrophysics

Astrophysics

2

Variable Stars, Stellar Pulsations, Nonlinear Dynamics, Cy Aqr

Scientific paper

It is now well established that the irregularities in the light intensities of some variables are chaotic in origin due to the inherent nonlinearities in the underlying dynamics. By taking typical stars, we present an analysis of their light intensities using time series analysis emphasizing aspects of nonlinear dynamics. The fractal dimensions and other indices are calculated to establish the strength of chaos and the minimum modes involved in their pulsations. In CY Aqr we have found high dimensional chaos.

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