No, a classic GR black hole does not have its own magnetic field. It can have electric charge, along with mass and spin, but that's it.
There is a somewhat fringe alternative idea called a MECO, which can have a magnetic field. Unlike some of the other fringe black hole alternatives, this one at least produces falsifiable predictions.
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No, a classic GR black hole does not have its own magnetic field. It can have electric charge, along with mass and spin, but that's it.
There is a somewhat fringe alternative idea called a MECO, which can have a magnetic field. Unlike some of the other fringe black hole alternatives, this one at least produces falsifiable predictions.