Image Details
Caption: Figure 6.
Mass profile for the Hydra A cluster. Our combined profile (green) consists of an NFW component (blue) to account for the large-scale cluster potential and an isothermal component (red) to account for the stellar component within the BCG. We achieve good agreement with the total cluster mass (M2500) reported by Main et al. (2015) from their X-ray analysis, as well as with the mass profile of Okabe et al. (2015) derived from weak lensing. At smaller radii we see agreement with the dynamical masses inferred by Hamer et al. (2014) due to the presence of a large molecular gas reservoir. We additionally show the mass inferred from three velocity dispersion measurements reported in the HyperLEDA database. Note, however, that these velocity dispersions are reported without their aperture sizes, and hence a typical radius of 10 kpc was taken for plotting purposes.
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