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Q:
Could you explain why a black hole without an accretion disk
can not have a magnetic field? Is it possible that the mass within
a black hole could generate a magnetic field, but the field lines
have been drawn in beneath the event horizon by the intense gravity?
A:
Astronomers believe that it's the material in an
accretion disk around a black hole that generates the magnetic field. As it
approaches a black hole, gas will spin incredibly quickly and also will be
heated up. I don't think it's possible that mass within a black hole will
generate magnetic fields that can be felt outside the black hole.
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