Mike Williams <nospam@econym.demon.co.uk> wrote in news:ufu35BA
$SpOBFwbB@econym.demon.co.uk:

One awkward thing about thermonuclear explosions is that the signals
from natural ones (stars) are likely to swamp the signals from
artificial ones by many orders of magnitude. They also wouldn't appear
as spikes. They're wide spectrum sources, in fact fairly close to being
"black body" radiation. I believe that the S@H client removes such
broadband signals when it starts processing, saying "doing baseline
smoothing".

Wouldn't a blast like that also only be a single small point in time?  So 
that to be able to detect it from light years away, you would need to be 
listening at the right instant?  Even if the wave spreads over time, in 
500 light years, how long would the wave from a blast be?  

-- 
Ed

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