Image Details
Caption: Figure 13.
Satellite–host spatial (dproj) and velocity (ΔVlos) separations (similar to Figure 3) for the satellite candidates of MW-mass hosts (﹩\mathrm{log}{M}_{200}/{M}_{\odot }\gt 12﹩; see Figure 7). The colors of the data points represent the degree of satellite gas depletion (Equation (6); see Section 4.3). Light blue shaded regions mark the escape velocity curves (Equation (4); see Section 3.5) for the full range of host halo masses shown here (﹩\mathrm{log}{M}_{200}/{M}_{\odot }\in [12,12.44]﹩). Gray-scale shadings show contours of estimated ram pressure strengths (annotating ﹩\mathrm{log}{P}_{{\rm{ram}}}﹩ values in dyne cm–2) based on an MW-like CGM model and simple deprojections (Equation (7); see Section 6). Two low-mass “outlier” satellites (also see Figure 7) are marked with open stars. Names of the MW and M31 gaseous satellites are annotated.
© 2026. The Author(s). Published by the American Astronomical Society.