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Radiation form a Pulsar?

  1. Dec 19, 2011 #1
    If a current loop does not radiate EM waves, then why does a pulsar? If the charge is evenly spread through the pulsar and its rotation creates the B field. I Don't understand why it radiates?
  2. jcsd
  3. Dec 19, 2011 #2


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    Staff: Mentor

    From wikipedia's article on Pulsar: The magnetic axis of the pulsar determines the direction of the electromagnetic beam, with the magnetic axis not necessarily being the same as its rotational axis. This misalignment causes the beam to be seen once for every rotation of the neutron star, which leads to the "pulsed" nature of its appearance. The beam originates from the rotational energy of the neutron star, which generates an electrical field from the movement of the very strong magnetic field, resulting in the acceleration of protons and electrons on the star surface and the creation of an electromagnetic beam emanating from the poles of the magnetic field.
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