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Re: What's missing from this picture?


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Re: What's missing from this picture?

Joseph Lazio25 May 2004 21:59
>>>>> "JJY" == James J Youlton <youjaes@ix.netcom.com> writes:

JJY> I've been reading the various posts to this group and it occurs
JJY> to me that I haven't encountered this yet.  Has it been proposed
JJY> yet to study hydrogen line spectra sources and to look for
JJY> missing frequencies?  I know that the emmision probabilities of
JJY> the various hydrogen spectra have been accurately measured, so
JJY> what, if anything, would prevent detection of a possible ETI
JJY> based on their use of a specific frequency of hydrogen without
JJY> the attendant frequencies that are observed from stellar sources?

I'm also not entirely sure I understand what you are asking.  Do you
have in mind something like looking for emissions from tritium, which
is not a long-lived isotope of hydrogen, like <URL:
http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1986Icar...65..152V
>?

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James J Youlton Jr25 May 2004 18:32
I've been reading the various posts to this group and it occurs to me
that I haven't encountered this yet.  Has it been proposed yet to
study hydrogen line spectra sources and to look for missing
frequencies?  I know that the emmision probabilities of the various
hydrogen spectra have been accurately measured, so what, if anything,
would prevent detection of a possible ETI based on their use of a
specific frequency of hydrogen without the attendant frequencies that
are observed from stellar sources?

Have I totally missed something obvious here?

James

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