The central galaxy in a double-lobed radio source is usually
A) an irregular galaxy.
B) a spiral galaxy.
C) a dwarf elliptical galaxy.
D) a giant elliptical galaxy.
E) a quasar.
Correct Answer:
Verified
Q35: What type of galaxies do astronomers believe
Q47: That the radio lobes radiate synchrotron radiation
Q48: The hot spots in a double-lobed radio
Q49: _ galaxies contain a supermassive black hole
Q50: All _ galaxies are spiral galaxies that
Q52: Quasars are most common with redshifts
A)less than
Q54: We suspect that quasars are the active
Q54: Soon after discovery, it was observed that
Q60: Centaurus A is a radio galaxy that
Q60: The discovery of the gravitational lens effect
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