A variable white dwarf on its route to chaos?

Details A variable white dwarf on its route to chaos? A variable white dwarf on its route to chaos?

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...196l..13g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 196, no. 1-2, May 1988, p. L13-L16.

Astronomy and Astrophysics

Astrophysics

25

Chaos, Nonlinear Systems, Period Doubling, Stellar Oscillations, Variable Stars, White Dwarf Stars, Astronomical Models, Astronomical Photometry, Temporal Distribution

Scientific paper

From an analysis of photometric data the authors show the existence of a subharmonic frequency and its multiples in the Fourier spectrum of the pulsating DB white dwarf PG 1351+489. This strongly suggests that the star has undergone a period doubling bifurcation but its temporal behavior gives evidences of a more complex dynamics. As an illustration, a simple model is developped which exhibits qualitatively a similar dynamics.

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