From: Greg Aldering (aldering@panisse.lbl.gov)
Date: Wed Mar 19 2003 - 21:47:21 PST
>Digging around, I think that for P99 we *did* use simultaneous two-color
>fits for 972, 9621, and 9784.
>
>Those are the three at z>0.7; it appears that they were treated
>differently from the others.
>
>Can anybody confirm this?
I found that 972 and 9621 were done as joint fits, with U --> R and B --> I.
I think the rationale was that this was the only way for B-band to get some
weight in the fit, so it was more consistent than fitting in U alone (and
fitting in B alone would have been much too noisey).
As for 9784, I don't have a fit for it --- I think we took the values
directly from P98.
I also found that 94351 was done as a joint fit, with B --> R and V --> I.
This was done because the main observations start well after max, but in
I-band there was a reference point right before explosion which constrains
the stretch.
- Greg
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