Re: HST paper - dust extinction evolution

From: Alex Kim (akim@panisse.lbl.gov)
Date: Tue Apr 29 2003 - 09:00:42 PDT

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    Rob,

    The program can be easily rerun with any input cosmology you want. As you
    are aware, the size of the error bars depend on where you are in
    cosmological parameter space. The program takes a few minutes to run.

    w can be easily fit as well.

    Extinction corrections are applied, except of course R_V is not fit. To
    first order, K-corrections depend on observed E(B-V) so I don't see how
    changing R_V will cause problems in the K-correction.

    I propose that we wait for the "final" version to do these tests. Ramon
    will be out of town for a while.

    Alex

    On Mon, 28 Apr 2003, Robert A. Knop Jr. wrote:

    > On Sun, Apr 27, 2003 at 09:37:27AM -0700, Alex Kim wrote:
    > > Here are the results of the Monte Carlo run by Ramon Miquel on the
    > > effect of an extreme evolution in dust extinction properties on
    > > comsological parameter determination.
    >
    > One other -- can I assume that this is *with* extinction corrections
    > applied? I'm going to guess that this systematic is unmeasurable
    > without extinction corrections (as the only place it affects us is the
    > K-corrections, and we've done more serious things to the K-corrections).
    >
    > -Rob
    >
    >

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