Multiple Choice
Not only does the central engine of active galaxies and quasars require a black hole,but also ________ to provide the radiate energy.
A) globular clusters for food
B) a very strong magnetic field from neutron stars
C) a source of high-energy electrons for synchrotron radiation
D) an accretion disk of infalling matter
E) a high rate of rotation for the black hole
Correct Answer:

Verified
Correct Answer:
Verified
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