tn41

[aah@nofs.navy.mil (Arne A. Henden)]

Michael keeps expanding this note, which is an excellent
description of how to approach the data analysis phase of the
TASS data.  (It can only improve when the full database is used.)
  A couple of comments (since my mail to Michael bounces on an
irregular basis):
  Your '100 candidates' is based on the V<10 sample only?  If so,
these should all be well-studied variables since the Tycho
catalog is complete at this level (amongst other sources of
information).
  My experience from the FASTT survey is that more than half of
the variables that pass tests like W/S are false.  Therefore,
be really careful before advertising a 'new' variable on the
poster.  Better to show that you are picking up all the known
variables that you should.
  I think Glenn's dataset has ~60K stars.  Figuring normal
statistics, this means there should be 500-1000 variables in
the database.  Lots more than you have found so far, but
since Glenn is the only current observer in the southern
zone, you will not be able to uniquely ascertain periods less
than one day.
  I'm surprised at the large delta between my UBVRI catalog
and Glenn's data.  If Tycho matches, so should my data.
I'll try to get some additional fields added before the AAS
meeting to increase the number of usable stars.
Arne