Stability of bidimensional stellar systems for axisymmetric modes
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We consider bidimensional stellar systems with distribution functionF depending both on the energy ɛ and on the angular momentumI. Using the Bartholomew formalism, we present in a new form the demonstration of the sufficient condition of stability ϖF/ϖɛ<0 when these systems are submitted to axisymmetric modes.
KeywordsStellar System Axisymmetric Mode Distribution functionF
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