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DTSTART;TZID=Europe/Brussels:20231109T130000
DTEND;TZID=Europe/Brussels:20231109T140000
DTSTAMP:20260415T055849
CREATED:20230915T093744Z
LAST-MODIFIED:20231025T111007Z
UID:2017-1699534800-1699538400@www.naxys.be
SUMMARY:Tamas Kovács (Institute of Physics\, Eötvös University\, Hungary)
DESCRIPTION:Title: Stability of exoplanetary systems retrieved from scalar time series \nAbstract: In this talk I propose a novel method applied to extrasolar planetary dynamics to describe the system stability. The observations in this field serve the measurements mainly of radial velocity\, transit time\, and/or celestial position. These scalar time series are used to reconstruct the high-dimensional phase space trajectory representing the dynamical evolution of planetary motion. The framework of nonlinear time series analysis and Poincaré recurrences allows us to transform the obtained univariate signals into complex networks whose topology carries the dynamical properties of the underlying system. The proposed scheme does not require neither n-body integration nor best fitting planetary model to perform the stability investigation\, therefore\, the computation time can be reduced drastically compared to those of the standard numerical methods. \nThe seminar will take place in Room S08 at the Faculty of Sciences.
URL:https://www.naxys.be/event/tamas-kovacs-institute-of-physics-eotvos-university-hungary/
CATEGORIES:NAXYS Seminar
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