The jets associated with AGN are defined by intense magnetic fields. What is the origin of these magnetic fields?
A)The stars that formed the black hole had magnetic fields, and the black hole retains those fields.
B)The accretion disk contains a plasma of charged particles. The acceleration of these particles produces a magnetic field.
C)The intense gravity of the black hole attracts and concentrates the magnetic field associated with the host galaxy as a whole.
D)Friction between the inner and outer parts of the rotating accretion disk produce the magnetic fields.

Question

Quizplus · Accepted Answer

The intense magnetic fields associated with AGN jets are produced by the acceleration of plasma of charged particles within the accretion disk. As these particles move at high speeds, they produce a magnetic field, which is then amplified by the compression of the plasma as it spirals towards the black hole. This process, known as the magneto-rotational instability, generates the strong magnetic fields that are observed in AGN jets.

The Jets Associated with AGN Are Defined by Intense Magnetic