Multiple Choice
Which of the following fills the space between galaxies in a cluster?
A) young blue stars
B) old red stars
C) hot gas that glows at X-ray wavelengths
D) cold, dark gas that only glows in radio wavelengths
E) supermassive black holes
Correct Answer:
Verified
Correct Answer:
Verified
Q36: Which of the following provides direct evidence
Q37: Our current understanding of galaxy formation suggests
Q38: Dark matter is essential in understanding the
Q39: In order to use Hubble's law to
Q40: We expect the kinds of galaxies that
Q42: Ignoring the effect of redshift, we expect
Q43: Astronomers estimate distances to large numbers of
Q44: Astronomers can estimate distances to the galaxies
Q45: In the immediate aftermath of the recombination
Q46: Structure formation in the universe proceeds hierarchically,