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Re: Suspected Variables in TASS data



Tom wrote:
>Most of the ones we are looking at are quite clearly variable.  One can 
>decide this once one learns something of the errors in the tass data and 
>then looks at a plot using say Rich Knowles' "selectun" , which allows a 
>rapid scan through suspects.  The problem is only determining the 
>period.  This is fraught with problems for such short samples.
  I fully agree with you, for the top dozen or two candidates.  It is
when you start pushing your variability limits closer to the threshold
or when you start working in crowded regions that you will pick up
the oddballs, and that you need to keep such errors in mind. 
They will happen!  It is amazing how you can get seemingly consistent
variability from photometric extraction problems.
Arne