Quasars have a(n) ____.
A) extremely high blueshift
B) moderate blueshift
C) undetectable Doppler shift
D) moderate redshift
E) extremely high redshift
Correct Answer:
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Q16: Double-lobed radio galaxies are an effect of
Q17: Most supermassive black holes are dormant.
Q18: Collisions in the early Universe were rare.
Q19: The broad emission lines of Seyfert galaxies
Q20: Quasars are caused by galaxy collisions in
Q22: Seyfert galaxies_.
A) often have unique shapes spectra
Q23: The energy output of a Seyfert galaxy_.
A)
Q24: Seyfert galaxies are always _ galaxies.
A) dwarf
B)
Q25: The high luminosity of a Seyfert galaxy_.
A)
Q26: Gas falling into a black hole becomes
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