Quasars
A) are more common in nearby clusters of galaxies and less common in distant clusters of galaxies.
B) are rare in the Local Group, with only one or two examples.
C) increase in number as redshift increases, a relationship that persists to the highest redshifts astronomers can measure.
D) peaked in number about 2 billion years after the Big Bang.
Correct Answer:
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Q29: All quasars appear to be
A) moving toward
Q30: Quasars emit significant amounts of radiation from
Q31: Which observation of quasars convinced astronomers that
Q32: An intense radio source is found to
Q33: The closest quasar is Cygnus A, 635
Q35: Quasars have now been detected at redshifts
Q36: What are the typical characteristics of a
Q37: Faint starlike objects producing intense radio energy
Q38: A starlike object seen on deep sky
Q39: A quasar is observed to have a
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