From: Kyle S Dawson (KDawson@lbl.gov)
Date: Fri Jan 26 2007 - 08:19:16 PST
It's a straight measurement, so you see a decline in ngal at high z, both because the galaxies are less evolved and
because we are quickly losing z' flux. The number count I did is EXTREMELY preliminary, I wouldn't ever trust it for
anything but demonstraation purposes.
----- Original Message -----
From: Anthony Gonzalez <anthony@astro.ufl.edu>
Date: Friday, January 26, 2007 6:48 am
Subject: Re: new version of HST proposal posted
To: Henk Hoekstra <hoekstra@uvic.ca>
Cc: Marc Postman <marc.postman@gmail.com>, HSTclusterSN@lbl.gov, Tony Spadafora <ALSpadafora@lbl.gov>
>
> > By the way, n_gal is the number of early type galaxies in the ACS
> > field (Kyle can correct me, as he measured it). I guess we need
> > to define this in the figure caption.
>
> Is a correction applied to ngal for how far down the luminosity
> functionthe data probe at different redshifts, or is this a
> straight measurement
> from the ACS data?
>
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