Author Question: Almost all stars on the main sequence range from 1 to 10 solar luminosities. Indicate whether the ... (Read 70 times)

bobbysung · **on:** Jul 27, 2018

Almost all stars on the main sequence range from 1 to 10 solar luminosities.

Indicate whether the statement is true or false

Question 2

What evidence supports the idea that a collision between two spiral galaxies might lead to the formation of a single elliptical galaxy?

A) observations of giant elliptical galaxies at the center of dense clusters that may have grown by consuming other galaxies
B) observations of some elliptical galaxies surrounded by shells of stars that probably formed from stars stripped out of smaller galaxies
C) observations of some elliptical galaxies with stars and gas clouds in their cores that orbit differently from the other stars in the galaxy
D) the fact that elliptical galaxies dominate the galaxy populations at the cores of dense clusters of galaxies
E) all of the above