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A Galaxy Is Measured to Have a Redshift of Z

Question 49

Multiple Choice

A galaxy is measured to have a redshift of z = 5.0.This galaxy is


A) filled with very cold gas.
B) moving at 5 times the speed of light.
C) dominated by gravitational redshift due to its supermassive black hole.
D) dominated by older, redder stars.
E) so far away that cosmological redshift dominates our observation.

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