From: Robert A. Knop Jr. (robert.a.knop@vanderbilt.edu)
Date: Mon Mar 22 2004 - 17:46:03 PST
On Mon, Mar 22, 2004 at 05:35:34PM -0800, Lifan Wang wrote:
>
> You are half right as it is both the problem of the feature (around 7000
> in particular) and the color. What I show in the plot are just the
> observed spectra scaled by a constant to match your spectral template with
> a number of observed spectra.
>
> May be all the observations are wrong ? (which is possible as the
> calibrations may all be wrong).
I don't understand the second paragraph at all. Which observations are
you talking about?
What do you get when you integrate your spectra through the R and I band
filters? I expect it will be rather different from what you get from
Serena's template-- and that's going to be the dominant reason for
different K-corrections.
We then need to ask which R-I color better matches observed R-I colors
of supernovae. I can already tell you that Serena's do match (see her
paper), probably better than my template matches.
-Rob
-- --Prof. Robert Knop Department of Physics & Astronomy, Vanderbilt University robert.a.knop@vanderbilt.edu
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