From: Ariel Goobar (ariel@physto.se)
Date: Fri May 03 2002 - 00:00:24 PDT
Hi Pierre,
the simplification in the plot I posted is that all SNe are stretch=1
and colors are pulled from a single spectral template. Letting the stretch
"float" and allowing for intrinsic color dispersion would probably blow
up the dispersion by a about a factor of 3. It would still not change
the conclusion: it is a waste not to use the R-I color that is
measured when prioritizing the candidates. The difference between a
z=0.5-0.7 candidate and one at z>1 are pretty significant.
Ariel
> the correlation was not as great as the one you show. Your plot displays
> a sigma(R-I) of the order of 0.05 at z=0.5 where R-I is B-V restframe.
> Are you sure this makes sense? Or the error bars are not the spread, but
> something else?
-- ___________________________________________________________________ Ariel Goobar (ariel@physto.se) FYSIKUM, Stockholm University Stockholm Center for Physics, Astronomy & Biotechnology tel: +46 8 55378659
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