From: Gabriele Garavini (garavini@in2p3.fr)
Date: Mon Nov 22 2004 - 01:38:59 PST
Dear Eric,
thanks for checking this out. My understanding is that Gaston did the
measurements on the high-z guys exactly as for the low-z. One thing that
would explain what you are finding, though, is that he might have re-binned
some of the spectra to visually decide where to put the endpoints and than
do the actual measurements on the unbinned spectra. This wouldn't surprise
me. Anyway what I do remember is that he used to select some small region
around the maxima to fit the continuum.
It would be nice to have his word on this issue. GASTON IF YOU ARE THERE
.... SPEAK UP!!!!
Moreover, do not be fooled by the binning of the data in the paper it is
not related with the measurements, it is just for presentation purpose.
One other sort of systematic could be the software used to do the galaxy
extraction. I've been using Gregory Sainton one and not that of Andy.
Cheers
Gabriele
On Fri, 19 Nov 2004, Smith, Eric Adam wrote:
> For anyone who's interested, in light of the recent discussion, I have written
> up a brief report (attached) describing my methods of measuring equivalent
> widths and comparing my results to Gaston's.
>
> Eric A. Smith
> Vanderbilt University
>
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