From: Saul Perlmutter (saul@lbl.gov)
Date: Sun May 12 2002 - 08:28:38 PDT
Keck only opened for about half an hour at the end of the night (with 1"
seeing), but we only had time to check some of our acquisition
techniques before our SN fields set. Subaru never was able to even
try to do any science at all last night. So no progress for the night
except for the one target Chris reported on from VLT, C02-031 (z ~
0.53).
For tomorrow night (and the following nights) I've made a version of the
current candidate list, which is broken down by magnitude ranges and
which telescope might try for a given candidate first. It is somewhat
updated from previous lists. I'll attach it to this message.
Please look at the targets that are on this list, and, if you can,
please try to help fill in the following blanks:
1) We need finding charts (or else FITS finders) for a number of the
candidates that are on the top sections of this table. This includes
all of the Subaru SDF-main fields, and several of the CFHT candidates
from the French team. Even if we use FITS finders, it would be very
helpful to have some form of Postscript file output with a crosshair
showing where the candidate is.
2) There is practically no information available to evaluate several of
the unassigned candidates, like S02-069 and S02-081 (including no tiles
on the web). If anyone can help figure out what the ranking of these
should be that would be good.
3) Are we missing some important candidates?
4) If anyone can perform some magic and get us back some I ~ 24.6 mag
candidates in the CFHT fields that would help a lot, since then we can
go for one of the z ~ 1.2 candidates that we want for HST -- and still
be able to get its IR points with VLT/ISAAC.
Note: I'll contact Chris Lidman right now to help figure out if we can
do one extra target there more than indicated on the attached file.
Goodnight/goodmorning, --Saul
END-OF-NIGHT CANDIDATES
=======================
Gemini Keck
T02-029 21.3 Bright AGN?
T02-047 22.9
T02-028 22.9
T02-030 23.3
T02-055 23.9 weak
MOST-OF-NIGHT CANDIDATES (In the "deep" field)
================================================
_____________________Magnitude 22.2 to 23.3___________________________
Gemini Keck VLT
C02-028/Prolix 22.2 13%
S02-058 22.5 85%
S02-064 22.X
S02-074 23.3 72%
S02-075 23.2 200%
(but no finding chart)
S02-084/SDFe1 23.0 638%
_____________________Magnitude 23.5 to 24.3 ___________________________
Gemini Keck VLT
C02-013/Isntix 24.0
T02-015 24.1 74%
S02-057 24.0 82%
C02-030/Troudux 23.8 54%
T02-053 24.02 17%
(22 mag host: AGN?)
S02-085/SDFe4 23.8 32%
_____________________Magnitude 24.3 to 25.0____________________________
Gemini Keck VLT
S02-061 24.7 117%
S02-078 24.7 85%
S02-070 24.6 122% [no HST]
S02-060 25.1 917% [no HST]
_______/SDFe8 24.6 >1000% no visible host
S02-082/SDFe3 24.8 229%
S02-083/SDFe7 24.85 31%
S02-080 24.75 10% lower priority
S02-071 24.5 8% lower priority
S02-076 24.7 5% lower priority
S02-079 24.4 6% lowest priority
Unassigned Candidates
=====================
These are all LBL magnitudes, so I'm not sure how much (0.5mag or more) to
subtract off these values:
S02-066 Ugluk 3 26.12LBL 5.59 16%
S02-069 2 25.43LBL 9.23 24% (unvetted)
S02-081 2 25.65LBL 7.65 30% (unvetted)
S02-065 Wormtongue 3 25.68LBL 8.31 10% "suspect"
The Bottom Of the Barrel
==========================
These first two are important to rule out or rule in because they are
in CFHT field (visible from VLT/ISAAC) and could be deep (especially the first
one):
C02-025 14:01:44.4 +05:21:21.4 3 24.4 5.26 40%
C02-023 14:00:39.1 +04:52:20.1 3 23.9 7.32 28% (yuckish)
S02-063 13:25:32.5 +27:22:14.0 3 26.13LBL 5.21 53% YUCK [not
that bad?]
S02-068 Bilbo 13:25:42.7 +27:21:09.9 2 26.20 4.88 38%
S02-056 13:22:16.4 +27:44:45.3 3 26.0LBL 4.91 1198%
S02-062 13:22:32.9 +27:43:21.6 3 24.28 4.29 121%
S02-059 Bombur 13:22:15.9 +27:24:28.6 3 26.4 4.99 12%
S02-072 SDF2 13:24:40.8 +27:22:15.5 3 24.32 0.00 0 (very
weak)
S02-073 SDF3 13:24:41.5 +27:24:56.7 3 23.75 0.00 0 (very
weak)
Currently candidates that are considered not worth spectrum:
C02-029 comix 23.1 15.29 15% weird lightcurve
C02-020 Dwalin 23.9 6.50 50% Nothing seen in French subtraction
C02-026 cand0015 24.1 6.77 25% Nothing seen in French subtraction
______________________________________________________________________________
Completed spectrum observations:
name name2 RA2000 Dec2000 Prio Mag ApSig %INC
-----------------------------------------------------------------------
T02-037 Elindil 15:46:57.0 +08:12:36.6 8 22.3 8.8 46 z=0.49 Gemini
S02-064 13:24:06.3 +27:42:10.0 8 22.8 111.1 107 z=0.56?Gemini
C02-027 14:02:10.6 +04:52:14.5 4 23.0 16.25 15 done at Gemini
C02-031 23.7 18% z=0.53? VLT
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