From: Robert A. Knop Jr. (robert.a.knop@vanderbilt.edu)
Date: Fri Feb 28 2003 - 04:41:20 PST
On Fri, Feb 28, 2003 at 06:38:29AM -0600, Robert A. Knop Jr. wrote:
> Of coures, really to do it requires their actual filters
A note specifically about this -- if they used tuned-z filters, I doubt
they had a filter for every 0.01 increment in z. More likely, they had
a filter for every 0.1 or 0.2 in z. Suppose they had a z=0.35 filter
they used for everything in the z=0.25-0.45 redshift range. A lot of
their supernovae are in the upper half of that range, and would have
suffered U-band contamination *worse* than they would have just using a
standard R filter.
(If they did have a lot of well-tuned filters, then it's unlikely that
this will be that big of an effect, but it's possible that their trying
to tune their filters ended up turning around and biting them on the
butt if they happened too often to fall on the higher-redshift side of
the filter's nominal redshift.)
-Rob
-- --Prof. Robert Knop Department of Physics & Astronomy, Vanderbilt University robert.a.knop@vanderbilt.edu
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