Among galaxies with active galactic nuclei, Seyfert galaxies are:
A) spiral galaxies with strong radio emission.
B) spiral galaxies with weak radio emission.
C) elliptical galaxies with strong radio emission.
D) elliptical galaxies with weak radio emission.
Correct Answer:
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Q48: Consider the diagram of superluminal motion in
Q49: The accretion disk around a typical quasar
Q50: As currently understood, the ultimate source for
Q51: Seyfert galaxies were once considered to be
Q52: Seyfert galaxies are:
A)elliptical galaxies whose nuclei resemble
Q54: A spiral galaxy with a bright, compact
Q55: What is the difference between a Seyfert
Q56: Observationally, the biggest difference between quasars and
Q57: Blazars are:
A)elliptical galaxies whose nuclei resemble quasars.
B)spiral
Q58: A blazar is a(n):
A)eclipsing binary star in
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