Stellar and dynamical masses of brightest cluster galaxies

We investigate the stellar and dynamical mass profiles of 32 brightest cluster galaxies (BCGs, M K = −25.7 to −27.8 mag) in massive clusters (0.05 < z < 0.30), and in particular the rising velocity dispersion profiles of 23 of these BCGs found in Loubser et al. (2018). We make comprehensive measurements of the Gauss-Hermite higher order velocity moments h 3 and h 4 , and find positive central values for h 4 for all the BCGs. We model the stellar and dynamical mass profiles of 25 of the BCGs using the Multi-Gaussian Expansion (MGE) and Jeans Anisotropic Method (JAM) for an axisymmetric case, deriving the stellar mass-to-light ratio (ϒ *DYN ), and anisotropy ( β z ). We further explicitly add a dark matter halo mass component ( M D M within r 200 ) which we constrain from weak lensing results. In this proceedings, we summarise the study and show an example of the results.