QUESTION 10 : There are many lines of evidence which support the
scenario, outlined in class, for how the Milky Way formed : namely that our galaxy formed
from the slow collapse of an enormous cloud of hydrogen and helium gas. All but one of
the following evidences supports this scenario:
a) the center of our galaxy has a black hole.
b) the average age of stars decreases as you proceed from a spherical to a flat disk
kinematic distributions.
c) the oldest stars show the least amount of heavy elements.
d) most stars in the bulge rotate in the same direction as stars in the disk.
e) the oldest stars have the most random spherical orbits.
still have questions? email me: