From: Naoki Yasuda (naoki.yasuda@nao.ac.jp)
Date: Sat Dec 07 2002 - 17:58:22 PST
Hi Saul,
> There are two questions that might help decide what we might ask VLT/FORS2 to
> observe during the next few nights:
> 1) Have we reached sufficient signal-to-noise for the -071 and -017?
-071(i'(AB)=25.4@Dec07) may be ok.
-017(i'(AB)=26.4@Dec07) is not.
> 2) Have we ever obtained any observations with Suprime-Cam in a second filter band
> (to get color measurement to determine extinction) for the lower redshift supernovae
> that we are still following in field 1 and 5? This could have happened during any of
> the observation periods from the search period onward. These observations may not be
> very "expensive" for FORS2 to get in terms of exposure time, since they would be for
> lower redshift supernovae, but they would make a big difference in terms of being able
> to use thse supernove on a hubble diagram.
>
> It's probably hard to do, but if you can answer the second question before
> tonight's FORS2 time, we might start asking for some second-color observations as soon
> as possible.
I have not checked the quality of data, but we have observed
SXDS_1 and 5 with z'-band on Nov 5 with exposure of about 40min.
--- Naoki Yasuda @ National Astronomical Observatory of Japan e-mail: naoki.yasuda@nao.ac.jp
This archive was generated by hypermail 2.1.4 : Sat Dec 07 2002 - 17:58:45 PST