How Is the Energy That Powers Radio Galaxies,quasars,and Other Active

question 3

Multiple Choice

How is the energy that powers radio galaxies,quasars,and other active galactic nuclei produced?

• A)by nuclear fusion near a central black hole
• B)by magnetic fields that trap and accelerate charged particles,which then radiate high amounts of energy
• C)by matter that has been converted to pure energy being shot out as jets by a central black hole
• D)by gravity,which converts potential energy of matter falling toward a central black hole into kinetic energy,which is then converted to thermal energy by collisions among the particles of matter
• E)by matter-antimatter annihilation near a central black hole

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