Multiple Choice
Many rich, regular clusters of galaxies contain substantial amounts of very hot, intergalactic gas. What is believed to have produced this hot gas?
A) collisions between galaxies in the cluster
B) bursts of star formation in merging galaxies
C) supernovae (exploding stars)
D) jets of gas ejected by supermassive black holes at the centers of the galaxies
Correct Answer:
Verified
Correct Answer:
Verified
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