Constraining the internal dynamics of stellar systems using the NMAGIC particle code

摘要

NMAGIC is a parallel implementation of our made-to-measure (x2M2M) algorithmfor constructing N-particle models of stellar systems from observational data, which extends ear-lier ideas by Syer Tremaine (1996). The X2M2Malgorithm properly accounts for observationalerrors, is flexible, and can be applied to various systems and geometries. We show its ability toreproduce the internal dynamics of an oblate isotropic rotator model and report on the modelingof the dark matter (DM) halo of NGC 3379 combining SAURON and PN.S kinematic data. TheX2M2M algorithm is practical, reliable and can be applied to various dynamical systems withoutsymmetry restrictions. We conclude that x2M2M holds great promise for unraveling the internaldynamics of bulges.