Journal
ASTRONOMISCHE NACHRICHTEN
Volume 329, Issue 4, Pages 403-412Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asna.200710835
Keywords
galaxies : kinematics and dynamics
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In the present paper we apply a new method of distinction between ordered and chaotic motion in galactic potentials. The method uses the Fourier Transform of a series of time intervals each one representing the time that elapsed between two successive points on the Poincare surface of section. Examples of the methods ability to achieve an early and clear detection of an orbit's behavior are provided using two galactic potentials. The new method can also be applied in order to have an early distinction between ordered and sticky orbits. The method is generalized in order to be used in models with more than two dimensions. Finally we have tried to find an one-number index to give us the nature of the orbit instead of checking by eye the whole spectrum. (C) 2009WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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