From: Kyle S Dawson (KDawson@lbl.gov)
Date: Wed Oct 26 2005 - 14:42:43 PDT
Is the z=1.2 cluster close enough to the foreground cluster cl1604+4321 to fit them both in the FOV of ACS?
How many foreground galaxies associated with the supercluster would fall into the 3' FOV if the ACS were
centered on the z=1.2 cluster? I believe the effects due to lensing are not that significant, on the order of a few
percent, and those negative effects would be outweighted by the high density of galaxies in the projection
along the line of sight of two clusters.
-Kyle
----- Original Message -----
From: Lori Lubin <lubin@physics.ucdavis.edu>
Date: Wednesday, October 26, 2005 5:23 pm
Subject: Possible z > 1 target cluster
>
> As part of our DEIMOS survey of the CL1604 supercluster at z = 0.9 (of
> which one of our SN targets CL1604+4304 at z = 0.90 is a member), we
> discovered a background cluster at z = 1.17. We have 37 confirmed
> members,with a velocity dispersion of ~850 km/s. This cluster is
> located near
> another SC member, CL1604+4321 at z = 0.92. It may be an interesting
> target because of the existing number of redshifts and the
> possibility of
> getting SN at z = 0.9 at the same time, although the lensing due to
> theintervening structure may make this target too complicated.
>
> Regards,
>
> Lori
>
>
>
This archive was generated by hypermail 2.1.4 : Wed Oct 26 2005 - 14:44:10 PDT