From: Vitaliy Fadeyev (VAFadeyev@lbl.gov)
Date: Mon Apr 12 2004 - 15:03:41 PDT
Hi All,
I hope this is not overly late.
It was requested to verify the results I've shown before for 1999Q. The difference
of what was done before, with the standard Rob's procedure, is in the photometry
part. Now this part is redone with full Rob's code. (Some code tune-up was necessary,
because the supernova was observed with a different WFPC2 chip than we usually use,
and for other minor reasons.) The photometric flux values for individual exposures
agreed, with RMS of about 1%. You can see the lightcurve fit parameters shown below
for the case of HST data only (this means no ground discovery data point and
no pre-set time of max), with case (1) being the "old" fit, and case (2) being a "new" fit.
I think this confirms the previously shown results.
m_B dm_R m_B_corr dm_B_corr s ds chisq dof m_R kcorr_R kcorr_I tmax dtmax R-I d(R-I)
(1) 22.82 0.06 23.02 0.16 1.117 0.054 5.29 8 22.06 -0.764 -0.310 2451186.54 1.444 -0.054 0.074
(2) 22.84 0.06 23.02 0.15 1.102 0.049 4.76 8 22.04 -0.792 -0.331 2451187.74 1.526 -0.080 0.071
Please let me know if there are any questions about this issue.
Cheers,
vitaliy
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