SETI public: RE: Fw: Jovian radio bursts?

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----- Original Message -----
From: Thomas Ashcraft
Sent: Monday, June 23, 2003 9:58 PM
To: bioastro list
Subject: SETI bioastro: RE: Fw: Jovian radio bursts?

>June 23, 2003

Does anyone know if decametric radio emissions from the Jupiter system (
specifically short bursts or so-called S-bursts ) have ever been analyzed
for possible pattern, sentience, or signal?

Thomas Ashcraft
72632.1427_at_compuserve.com
__________________________________

>>>>>>>>>>>I think we can safely rule that out -- S-bursts have been
studied in very
great detail for half a century, and while the precise details of their
formation processes aren't completely understood (there are at least two
theories), they are definitely associated with Io's natural "flux tube" of
high-powered electrical current arcing between Io and Jupiter's polar
regions -- which explains why their timing, like that of the "L-bursts", is
largely correlated with Io's orbital position in Jupiter's magnetosphere
(since Jupiter's magnetic field axis, and thus the structure of its
magnetosphere, is mildly tilted relative to Io's orbit). Indeed, they seem
to come largely from the regions of the flux tube a few thousand km above
Jupiter's auroras.

There's quite a lot on them (and Jupiter's general decametric radio bursts)
available on Googol; the single best piece I've found is Bhardwaj and
Michael's paper "Io-Jupiter System: A Unique Case of Moon-Planet
Interaction", which was delivered at an ESA conference in June 2002 and can
be found at http://arxiv.org/ftp/astro-ph/papers/0209/0209070.pdf .
<

Dear Sir or Madam,

Thank you for your reply and reference to the fine research paper.

Indeed much is being learned about jovian dynamics with each space probe
sent. Yet the A, B and C regions of Jupiter remain a mystery, whatever
they are. As a consistent Jupiter radio observer over the past few
years I have especially marveled at the regularity of S-bursting in
relation to the so-called B region and specifically the area between
CML-III 120 to 140 degrees.

Of course my logic says that the bursts result from a purely natural
process. There probably is no "sentience" in the patterns. But I must
admit that when I record my radio reception into a high speed spectrograph
and see individual bursts and burst clusters it sure makes me want to
further pass the reception through some sort of pattern recognition program
or code sensing device....just for the heck of it. Just for the experiment
of it.

Jupiter seems to me to be a very stable rotating beacon with a oddly
clock-like dependability.

Remember that Jupiter emissions were heard and dismissed in the early 1950s
as regional interference by Australian radio astronomers and then were
formally discovered a couple of years later by Burke and Franklin....who
connected the bursts together with Jupiter in the local sky.

So who knows?....Maybe we are being bombarded with some sort of possible
"signal" that hasn't been properly analyzed yet.

Just a ponderence.

Thomas Ashcraft
72632.1427_at_compuserve.com

.

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