From: Robert A. Knop Jr. (robert.a.knop@vanderbilt.edu)
Date: Fri Mar 14 2003 - 12:09:34 PST
On Fri, Mar 14, 2003 at 11:15:15AM -0800, Lifan Wang wrote:
> Would not this error floor introduce unreasonably large errors at the
> late time light curves ? At day 40, the supernova is about 3 magnitude
> fainter, i.e. the flux is about 0.063 times that of the peak. The error
> floor then implies late time errors are around above 0.1 mag and increases
> at later epoch. I don't think this is the correct way of treating the
> data, as the measurement can definitely be better than the error floor.
I disagree.
Unless you integrate a WHOLE Lot longer, the late time data *is* going
to have larger *magnitude* error bars than the early time data!
Measurements are really flux, and comparable *flux* error bars is what
I'd expect... unless you really do integrate an awful lot longer for the
late time points.
-Rob
-- --Prof. Robert Knop Department of Physics & Astronomy, Vanderbilt University robert.a.knop@vanderbilt.edu
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