A spiral galaxy with a bright, compact nucleus showing strong emission lines is called a:
A) quasar.
B) gravitational lens.
C) blazar.
D) Seyfert galaxy.
Correct Answer:
Verified
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
Q53: Among galaxies with active galactic nuclei, Seyfert
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
Q59: The spectrum of a blazar shows:
A)absorption lines
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