From: Lifan Wang (lifan@panisse.lbl.gov)
Date: Thu Apr 01 2004 - 16:13:52 PST
Chris,
There are four figures in the plot. They are K-R and K-I at z =
0.05 and 0.08, respectively.
Cheers,
Lifan
On 1 Apr 2004, Chris Lidman wrote:
> Hi Lifan,
> From the label on the x-ordinate, it would appear that this is for the
> R filter. Can you do the same for I? Also, is this plot applicable to a
> single redshift?
>
> Cheers, Chris.
>
> On Thu, 2004-04-01 at 19:29, Lifan Wang wrote:
> > Hi,
> >
> >
> > Here is the histogram of K-corrections for all of the spectra that I
> > have. The template spectrum Serena sent to me is marked by the red "temp".
> >
> > I might have found the reason for the difference between my K-corr and
> > the Serena's. In my fit, I only normalize the spectra to the observed
> > magnitudes close to the region of interest, and use a smooth function for
> > the normalization. When I try to include all the colors, I do end up
> > something closer to what I can get from Serena's template, but I think
> > this is unphysical.
> >
> > In the attached figure, the spectrum from Serena's template is treated
> > just as the observed spectra. They are normalized to to VRI magnitudes,
> > normalizing only to RI magnitudes makes no difference in my results.
> >
> > Note that contrary to what's in Rob's email, that in my approach, I did
> > not "applying the function that pushes it a little up here, a little down
> > there, in comparison to what Serena did".
> >
> > The normalization function I use has NO wiggles, and as it seems, we all
> > agree that this is important.
> >
> > Because my normalization applies only for VRI, the spectra in U and B
> > are arbitrary. I hope this also addresses Rob's previous email requesting
> > my spectra at 3000A.
> >
> > Cheers,
> >
> > Lifan
> >
>
-- Lifan Wang (510) 495 2733 (o) (510) 704 0119 (h)
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