Speaker
Description
Dwarf spheroidal (dSph) satellites of the Milky Way (MW) are the
mostly dark matter (DM) dominated systems. Their dynamical parameters
such as line-of-sight (LOS) velocities are measured very accurately, so they
are very good probes of DM properties. We have constructed nearly
self-consistent stars-halo model of the dSph Fornax galaxy using
Schwarzschild orbit-superposition code of the AGAMA software library.
This is a step forward after previous studies
of this object based on more approximate Jeans equation approach.
The code fits Gauss–Hermite (GH) expansion coefficients of the LOS velocity
distribution for each apperture of the galaxy to their observational estimates.
We use the latest data on the stellar velocities and their probability
membership to estimate the GH coefficients of the observational data
by the AGAMA code.
