From: Saul Perlmutter (saul@lbl.gov)
Date: Fri Jan 13 2006 - 22:59:15 PST
...I'll be curious to hear what other people think, but I suspect that
the previous figure you sent (with delta z/1+z on the x-axis) makes the
case more strongly. (Actually, why do I get the impression from this
plot that there are comparable number of ellipticals+S0 in the cluster
and in the field above z>1, while the previous plot suggests that the
ratio is more like 3.5 to 1?) If we go with the previous plot, can you
redo it with all (and only) galaxies above z=1? --S
Marc Postman wrote:
> Here is a preliminary color offset plot. Zero offset corresponds to
> center of red sequence; objects bluer than RCS have negative offsets.
> If you extrapolate the mean number per large negative (blue) color
> offset bin into the range where the RCS lies, the excess is still
> significant. The RCS typically lies in the range -0.1 < Delta Color <
> +0.15. So this corroborates the spectroscopic plot as well. I will
> generate precise integrals over the weekend.
>
> Marc
>
> -----------------------------------------------------------------
> Marc Postman Email: postman@stsci.edu
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