9739/97S K-correction

From: Greg Aldering (aldering@panisse.lbl.gov)
Date: Tue May 20 2003 - 00:14:39 PDT

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    Hi Rob,

    I was comparing your fits to those for the 42, sparked by Gerson's
    comparison table. You may have noticed that 9739/97S is almost 0.3 mag
    different in your table than in P99. I have traced this to differences
    in kcor1. If I plot the difference in kcor1 versus redshift there is a
    smoothly increasing difference in going from z=0.18 up to 0.66 or so.
    The difference is quite large, but 9739/97S stands out from this trend
    by about 0.2 mag. Indeed, it disagrees with SN with very similar
    redshifts. Could this be a problem?

    - Greg

    P.S. Beyond z ~ 0.66 there is also a big change in the differences, but
         I assume this has to do with which filters were used.

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