Why are the oldest stars located towards the center of the galaxy? Explain
a
The fusion ignitions of newer stars pushes the other stars towards the center of the galaxy
b
The radiation from stars tends to put radiative pressure on other stars, pushing them away from each other towards the center
c
The original stars are always created at the center of the galaxy
d
Gravity has had more time to pull those stars towards the center
d
Gravity has had more time to pull those stars towards the center.
Over billions of years, gravity has been acting on the stars within a galaxy, causing the more massive and dense stars to be pulled towards the center. This gravitational force pulls matter inward, creating a concentration of older stars towards the central regions of the galaxy. As new stars form, they also experience the gravitational pull, but since they have not had as much time to be influenced by gravity, they tend to be located further away from the center.