Image Details
Caption: Figure 9.
The VGSR velocities as a function of proper motion, μℓ, for the fields at positive (top) and negative (bottom) longitudes. Whereas the positive high-VGSR stars have proper motions offset from the rest of the bulge, this is not the case for the negative high-VGSR stars.
© 2021. The American Astronomical Society. All rights reserved.