A really interesting talk by Sam George about work he has been doing trying to detect extra-solar planets using low frequency radio astronomy by their auroral signatures.
Interesting to note that Jupiter's radio 'disk' is about 2.5 degrees, and should be observable from quite some distance off - so the same should apply to extra-solar planets round other stars.
Sadly the work did not provide any positive results - perhaps the frequencies being observed at were too high, or the levels were too low for detection - or both.
It sounds like a really interesting field of work. Sam having recently received his PhD is off to Calgary on a post-doc to do some more work on this - so will be interesting to get an update in a couple of years.
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