TY  - JOUR
A1  - Kurths, Jürgen
A1  - Schwarz, Udo
T1  - Application of techniques of nonlinear dynamics to SS Cyg
N2  - We look for structural properties in the light curve of the dwarf nova SS Cyg by means of techniques from nonlinear dynamics. Applying the popular Grassberger-Procaccia procedure, Cannizzo and Goddings (1988) showed that there is no evidence for a low-dimensional attractor underlying this record. Because there are some hints for order in the light curve, we search for other signatures of deterministic systems. Therefore, we use other methods recently developed in this theory, such as local linear prediction and recurrence maps. Our main findings are: i] the prediction error grows exponentially during outburst phases, but via a power law in the quiescent states, ii] there are some rather regular patterns in this light curve which sometimes recur, but the recurrence is not regular. This leads to the following conclusions: i] The outburst dynamics shows a higher degree of order than the quiescent one. There are some hints for deterministic chaos in the outburst behavior. ii] The light curve is a complex mixture of deterministic and stochastic structures. The analysis presented in this paper shows that methods of nonlinear dynamics can be an efficient tool for the study of complex processes, even if there is no evidence for a low-dimensional attractor.
Y1  - 1993
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/28924
UR  - http://www.agnld.uni-potsdam.de/~shw/Paper/SS_Cyg_AIP.ps.gz
SN  - 0-7503-0282-8
ER  -