Re: HST paper - dust extinction evolution

From: Robert A. Knop Jr. (robert.a.knop@vanderbilt.edu)
Date: Mon Apr 28 2003 - 15:40:03 PDT

  • Next message: Alex Kim: "Re: HST paper - dust extinction evolution"

    On Sun, Apr 27, 2003 at 09:37:27AM -0700, Alex Kim wrote:
    > >This bias moves almost exactly along the line
    > >$\Omega_M+\Omega_\Lambda=1$, increasing uncertainty along the thin
    > >axis of the error contour, and hence also in the deceleration
    > >parameter. However, the extreme difference in dust properties
    > >considered in the Monte Carlo contributes a shift in the cosmological
    > >parameters that is less than 1 $\sigma$ of our quoted statistical
    > >error bars.

    Note that <1-stat-sigma is the size of *all* of the statistical errors
    we're quoting... can you give me a number I can stick on this? Only if
    it is "lots" less than the other statistical errors, or something (like
    Malmquist) that is very challenging to estimate a number on, are we
    leaving a number out.

    We might finesse this by saying that these are the most extreme cases,
    and thus for more likly cases the uncertainty is likely to be negligible.

    -Rob

    -- 
    --Prof. Robert Knop
      Department of Physics & Astronomy, Vanderbilt University
      robert.a.knop@vanderbilt.edu
    


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