You Measure the Heavy Element Abundances and Motions of Stars

Multiple Choice

You measure the heavy element abundances and motions of stars near the Sun.When plotting your data, you find that the stars separate into two distinct groups, which you label A and B.Group A has velocities and heavy-element abundances similar to the Sun's, while Group B has high velocities and low heavy-element abundances.These groups are, respectively, in which two stellar components of the Milky Way?

A) disk and halo
B) bulge and disk
C) halo and disk
D) halo and bulge
E) globular clusters and halo