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GRBs? this is even brighter!

  1. Dec 6, 2004 #1
    http://www.newscientist.com/news/news.jsp?id=ns99996736
     
  2. jcsd
  3. Dec 6, 2004 #2
    This thing has intrigued very much, It would be horrible if suddenly a nearby pulsar started to emit giant pulses and scorched Earth, so I have made a bit of investigation.
    The thing is that giant pulses were first detected in 1968 by Staelin; there are actually known only 4 pulsars emitting giant pulses, and one of them, the Crab pulsar emits on average a giant pulse every ten seconds. Any idea of what is the mechanism that produces giant pulses?
     
    Last edited: Dec 6, 2004
  4. Dec 7, 2004 #3

    Chronos

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    I think these are otherwise 'normal' pulsars that have a wobbly axis of rotation. When you catch it at just the right angle, you get a tightly focused pulse. I would be curious as to how much polarized they are.. I would guess they are strongly polarized. The pulses are, however, so brief they are hard enough just to detect.
     
  5. Dec 7, 2004 #4
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