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Synchrotron direction

  1. Oct 7, 2015 #1
    I read in radio astronomy book that radiation from high-energy electrons radiating synchrotron emision, is concentrated in the direction of its instantaneous motion. So if we see them, their orbital motion plane contains us(as observer). I am wondering if they have spiral motion in the related magnetic field, their orbital motion plane is moving instantaneously. So how are we observing their radiation continiously?
  2. jcsd
  3. Oct 7, 2015 #2


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    There are a huge (real huge!) number of electrons all spiraling around the magnetic field and all in different points of their orbits. So there are always some pointing at us.
  4. Oct 7, 2015 #3
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