A mark of a galaxy formed by collapse typically includes a mix of young and old stars. This indicates that the galaxy has gone through a process of star formation over a long period of time, with both newly formed stars and older stars present. In contrast, uniformly young stars or same-age stars might suggest a more recent formation, while abundant gas and dust could indicate the potential for future star formation.
Which is a mark of the galaxy formed by collapse
Abundant gas and dust
Uniformly young stars
Same age stars
a mix of young and old stars
1 answer