Astrophysics (index)about

magnetic dipole radiation

(EMR naturally generated by a spinning magnetic dipole)

Magnetic dipole radiation is electromagnetic radiation (EMR) naturally generated when a magnetized object is spun other than in alignment with its magnetic field. The magnetic field is constantly changing, thus generating an electric field the two of which form electromagnetism waves. The effect is considered the means by which pulsars produce their "searchlight" beams of radio waves. The energy to create this radiation is from the rotation of the pulsar, which slows down over time.