From: Chris Lidman (clidman@eso.org)
Date: Mon Nov 01 2004 - 03:54:13 PST
Dear Rahman and Vallery,
Many thanks for doing this. You have done exactly what I have asked
you to do.
Both our estimates agree. I only need to verify the zero point
(I'll use the 2MASS catalogue for this) and we can be confident that
Reiss et al. have made an error (again!).
Regards,
Chris.
On Mon, 2004-11-01 at 07:19, Rahman Amanullah wrote:
> On Thu, 21 Oct 2004, Chris Lidman wrote:
>
> > I have a request for you. I have reduced the SOFI IR data on SN 1999Q,
> > an unusual SN from the Reiss et al. 2000 paper. I'm finding that this SN
> > is much brighter than that published by Reiss et al. Can I ask you to do
> > an independent measurement of the magnitude.
>
> Hello Chris, I am not quite sure how you wanted us to check this, but we
> have done a PSF fit to the image that you provided, and we measure the
> magnitude to be about J = 22.62 +/- 0.13. This, assuming that exposure
> time and everything else is included in the zero point that you gave us.
> Subtracting the fitted PSF gives a very clean subtraction.
>
> Cheers,
>
> Rahman & Vallery
>
> __________________________________________________________
> Rahman Amanullah, +46 8 553 786 61
> Stockholm University ICQ: 62860758
> Stockholm Centre for Physics, 17d 50m E
> Astronomy & Biotechnology 59d 26m N
>
> http://www.physto.se/~rahman/rahman-public.gpg
>
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