From: Don Groom (deg@panisse.lbl.gov)
Date: Tue Oct 21 2003 - 11:12:42 PDT
Rob,
Is hard to flesh out the days before -20 with zeros?
D
On Mon, 20 Oct 2003, Robert A. Knop Jr. wrote:
> On Mon, Oct 20, 2003 at 12:45:47AM -0700, VAFadeyev@lbl.gov wrote:
> > please find the attached note, which attempts
> > to answer the questions. It is based on Rachel's
> > newer and better S/N estimates.
> >
> > The 2nd questions is not answered. There seems
> > to be some software restrictions for such
> > substentially negative dates.
>
> Yeah, my software doesn't allow dates before -20 days in the rest frame,
> because the supernova hasn't exploded yet. (It uses such negative dates
> to flag the end of the lightcurve.) These only supply a weak constraint
> on the lightcurve in any event; if your other points are good enough,
> they're basically no constraint.
>
> -Rob
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