From: Saul Perlmutter (saul@lbl.gov)
Date: Wed May 08 2002 - 14:00:03 PDT
One extra bit of info on this discussion: Our best fit to S02-002's spectrum
from April 12 was to a supernova a week or so before max (restframe). This would
imply that it is now ~4 days past max, which seems like a good time to get more IR
data. Since this is a "bird in hand" high-redshift SN, it seems like we should
probably try to get some more signal-to-noise on it beyond the NIRI's ~4 hours so
far. When Chris and I discussed it, we figured that it might make sense to try
to get about another 3 or so hours on this one tonight, and then still have about
9 hours left for another high-redshift SN still to be discovered this coming week.
Now that we have realized the problem with the SDF supernovae not being observable
at VLT this might make the argument to complete S02-002 even stronger.
Ariel Goobar wrote:
> Hi,
> On Wed, 8 May 2002, Greg Aldering wrote:
>
> >
> > How much ISSAC time remains? The possible uses of that time are as follows:
> Chris will give you a more accurate estimate but it must be close to
> 20 hs as we got 25 hours in total.
>
> item 2) would suck up ~10-12 hours
> item 4) -"- ~1 hour /SN (we asked for time for two)
> item 3) would be comparable to 2) for each SN. I also know that
> Chris thinks we need to get OK from ESO if we were to do a final ref
> from last year, as this is one of the programs for which we were *not*
> given time for this spring.
>
> Thus items 1 + 2 + 4 seem doable. Chris will probably want to comment
> on this.
>
> >
> > 1) continue S02-002
> > 2) observe a z ~ 1.2 SN in the 14h+05d if one is found there and not in SDF
> > 3) obtain final references for Boccherini, and possibly Satie
> > 4) observe a z ~ 0.5 SN
> >
> > If S02-002 was discovered at max, then it is now about 10 days after
> > max, so it will start to fade quickly. If there is time to do item #2
> > and #3, as well as #1, then we should (re)start on S02-002 right away.
> > Otherwise, within one week we should know whether or not item #2 will
> > be implemented. If it is not, then we can restart on S02-002.
> >
>
> > By the way, do we have a problem - is Gemini the only telescope that can
> > follow a z ~ 1.2 SN if it is in the SDF? Since there isn't NIRI time this
> > month, how are we going to observe this SN, since, as Ariel pointed out,
> > VLT can't observe it?
>
> What about NICMOS? Any chance we get to use it now?
> Cheers,
> Ariel
>
> >
> > - Greg
> >
>
> --
> ___________________________________________________________________
> Ariel Goobar (ariel@physto.se)
> FYSIKUM, Stockholm University
> Stockholm Center for Physics, Astronomy & Biotechnology
> tel: +46 8 55378659
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