From: Mamoru Doi (doi@ioa.s.u-tokyo.ac.jp)
Date: Fri Sep 12 2003 - 07:35:30 PDT
Hi Greg,
Hisanori Furusawa is still working on photo-z in SXDS.
But at this point he has problems in low z
(z=0-0.5) as well as higher z (z>0.8).
He roughly thinks that contaminations expected for host
galaxies at z>1.2 is 30%.
Considering various factors including the HST schedule,
Subaru schedule, photo-z contamination, and available
resources in this fall, I think, it is probably better
not to carry out search in this fall with Subaru.
-Mamoru
(I should have written the subject as 2003 insted of 2004
in my previous e-mail.)
>Here a LBL we haven't been able to formulate a search plan for Subaru this
>fall. All of us would need a clearer picture of how deep we might expect
>to reach in such a search, and then calculate the number of SN expected
>from E/S0 host galaxies which will also have photometric redshifts. Do you
>know more about the photo-z situation now? Can you estimate the restframe
>B-band luminosity in E/S0 galaxies with 1.0 < z < 1.5 which will have
>photometric redshifts in a single Subaru field? If that totals to more
>than about 10^14 Lsun in B-band, then we might have a chance of success.
>
>A significant and complicating factor is that the HST schedule may be
>completely full. I learned that the STScI director has forced the COSMOS
>treasury survey team to move from the fall to the spring because he wants
>to use much of the time this fall for the Ultra-Deep Field (3:32:39.0
>-27:47:29.1 J200). I give the HST UDF schedule as an appendix for
>reference. Since we are not on the schedule, it is probably impossible to
>get on the schedule now.
>
>What are your thought?
>
>Cheers,
>
>Greg
>
>
>
>Appendix: UDF Schedule
>
>Visit#______Field_________________________Date
> 01-19 CDF-SOUTH-UDF Sep 24, 2003 - Oct 27, 2003
> 1B-69 CDF-SOUTH-UDF Sep 28, 2003 - Oct 30, 2003
> 6B-84 CDF-SOUTH-UDF Dec 04, 2003 - Jan 11, 2003
> 86-B4 CDF-SOUTH-UDF Dec 07, 2003 - Jan 16, 2003
> B5-D3 CDF-SOUTH-UDF Dec 10, 2003 - Dec 23, 2003
>
>
>On Fri, 5 Sep 2003, Mamoru Doi wrote:
>
>> Hi Saul, Greg, and Tony,
>>
>> Probably we don't have search in this fall with Subaru,
>> do we? We have to tell the answer quickly to SXDS team,
>> since we start scheduling observations.
>>
>> Cheers,
>>
>> -Mamoru
>>
Mamoru Doi
Institute of Astronomy
School of Science
University of Tokyo
voice +81-422-34-5084
fax. +81-422-34-5041
doi@ioa.s.u-tokyo.ac.jp
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