Extended Data Figure 2: Velocity dispersion profile.
From: The remnant of a merger between two dwarf galaxies in Andromeda II
Andromeda II has an approximately flat velocity dispersion profile, except for a significant dip near the average projected radius of the stellar stream. Points of different sizes and shading depths refer to different circular annuli sizes (as in the key), and error bars display 68% confidence levels around the most likely central value.
