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Three-component Stäckel potentials satisfying recent estimates of Milky Way parameters

par Famaey, Benoît ;Dejonghe, Herwig B.
Référence Monthly notices of the Royal Astronomical Society, 340, 3, page (752-762)
Publication Publié, 2003-04

Article révisé par les pairs

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Résumé :

We present a set of three-component Stäckel potentials defined by five parameters and designed to model the Milky Way. We review the fundamental constraints that any model of the Milky Way must satisfy, including the most recent ones derived from Hipparcos data, and we study how the parameters of the presented potentials can vary in order to match these constraints. Five different valid potentials are presented and analysed in detail. These are designed to be confronted with kinematical surveys in the future, by the construction of three-integral analytic distribution functions.