From: Saul Perlmutter (saul@lbl.gov)
Date: Sat Jan 21 2006 - 10:53:35 PST
Hi All,
A reminder of things we discussed at the last phone conf that we
need (fast) from various people to incorporate into the HST proposal --
while we're trying to cut, cut, cut. The timing is going to be
tighter than you might think because we have to shoehorn so much new
stuff in while cutting a large percentage out, so please help with
any/all material and ideas as early as possible. We're going to try to
have something to look at by Monday that gives us a close sense of what
the final product will look like. --Saul
1. Paragraph from HENK (and JASON) on the improvements in mass
measurements from Weak Lensing that we will have after another HST cycle
with a little more weight on I band exposures. Henk says it will go
from ~30% to ~23%. (Note that we are now baselining a ratio of about
3:1 z-band:i-band exposure time for Cycle 15 proposal.)
2. A few sentences from MIKE G. nailing why mass measurements that are
~23% uncertain are getting into a new science regime (so more
interesting than you might think going from 30% to 23%).
3. Paragraphs/sentences from MARC P. (coordinated between cluster
section and SN section) discussing improved color-mag diagram, and the
consequent limits now possible on dust in the clusters in which we
actually discover SNe.
4. Sentence from MIKE G. on why limiting intergalactic/intracluster
mass using hostless SN rate (or upper limit on it if we don't see any)
is an important science issue.
5. Sentences from PETER E. handling the recent literature references
and IR evidence for dust in clusters.
6. Figure from CHRIS L. showing clear examples of SN Ia spectra at z>1
that we obtained from the ground, proving that ACS/Grism is not required
for this.
7. Figure(s) and text from MAREK, ERIC L., and SAUL making case strong
that it is important to obtain a second year's worth of SN Ia in clusters.
8. Rewrite of SN observation plan from MAREK to explain current
baseline plan, and ideally shorten the previous explanation by referring
to our successful Cycle 14 implementation of the plan rather than a
theoretical plan that should work.
9. Cut / condense / update SN rates section(s). KYLE D.
10. Everybody who can should look at any sections that they know
about and try to find places to cut and sharpen argument. We still
need to find almost a page worth of material to cut!
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