Dynamical models of spheroidal multi-component stellar systems
Abstract
. We present a significantly improved version of our numerical code JASMINE, that can now solve the Jeans equations for axisymmetric models of stellar systems, composed of an arbitrary number of stellar populations, a Dark Matter halo, and a central Black Hole. The stellar components can have different structural (density profile, flattening, mass, scale length), dynamical (rotational support, velocity dispersion anisotropy), and population (age, metallicity, Initial Mass Function, mass-to-light ratio) properties. These models, when combined with observations, will allow to investigate important issues, such as quantifying the systematic effects of IMF variations, of mass-to-light ratio gradients, and of different stellar kinematic components (e.g. counter rotating disks, kinematically decoupled cores) on luminosity-weighted properties. The developed analytical and numerical framework aims at modeling Early-Type Galaxies, but it can also be applied to dwarf Spheroidal galaxies and Globular Clusters.
- Publication:
-
Star Clusters: From the Milky Way to the Early Universe
- Pub Date:
- 2020
- DOI:
- arXiv:
- arXiv:1909.10777
- Bibcode:
- 2020IAUS..351..273C
- Keywords:
-
- methods: analytical;
- numerical;
- galaxies: elliptical and lenticular;
- dwarf;
- star clusters;
- stellar content;
- kinematics and dynamics;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- 4 pages 2 figures. To appear in the Proceedings of the 351 IAU Symposium "Star Clusters: From the Milky Way to the Early Universe"