Which of the following phenomena are not thought to be results of collisions or other interactions between galaxies?
A)the presence of very large,central dominant galaxies in clusters of galaxies
B)the fact that elliptical galaxies are more common in clusters of galaxies than outside clusters
C)starbursts
D)the fact that spiral galaxies have both disk and halo components

Question

Quizplus · Accepted Answer

The presence of both disk and halo components in spiral galaxies is a fundamental aspect of their structure, not typically a result of collisions or interactions with other galaxies. These components are thought to form through the initial conditions of the galaxy's formation and its subsequent evolution, rather than through galactic interactions.

Which of the Following Phenomena Are Not Thought to Be