From: Robert A. Knop Jr. (robert.a.knop@vanderbilt.edu)
Date: Tue Nov 05 2002 - 04:50:16 PST
On Tue, Nov 05, 2002 at 09:47:00AM +0100, Ariel Goobar wrote:
> Are the listed magnitudes in the Vega system or AB ? What is the
> kind of uncertainty you expect on the numbers?
AB i' magnitudes. There will be a sysetmatic uncertainty of all
candidates being something like 0.2 to dim due to a lack of an aperture
correction. The stastical uncertainty on the zeropoint is probably
something like 0.1. You can figure out the photometry error by looking
at Ap. Sig.
-Rob
-- --Prof. Robert Knop Department of Physics & Astronomy, Vanderbilt University robert.a.knop@vanderbilt.edu
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