Tailoring triaxial N-body models via a novel made-to-measure method |
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Authors: | Walter Dehnen |
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Affiliation: | Department of Physics &Astronomy, University of Leicester, Leicester LE1 7RH |
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Abstract: | The made-to-measure N -body method slowly adapts the particle weights of an N -body model, whilst integrating the trajectories in an assumed static potential, until some constraints are satisfied, such as optimal fits to observational data. I propose a novel technique for this adaption procedure, which overcomes several limitations and shortcomings of the original method. The capability of the new technique is demonstrated by generating realistic N -body equilibrium models for dark matter haloes with prescribed density profile, triaxial shape and slowly outwardly growing radial velocity anisotropy. |
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Keywords: | stellar dynamics methods: N-body simulations galaxies: haloes galaxies: kinematics and dynamics galaxies: structure |
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