From: Ariel Goobar (ariel@physto.se)
Date: Wed May 22 2002 - 02:51:07 PDT
Hi Chris,
how many hours are left?
To do a z=0.9 guys is very interesting as it corresponds quite
nicely to restframe B-R. This would allow us to further explore
the intergalactic extinction issue at higher z. In 0.6" seeing it takes
3.8 has to reach S/N~20. If we also can squeeze in another z=0.5 guy,
I think that would be the best combination. At the moment, it seems to
us here in Stockholm that these two options should prevail w.r.t getting
a deeper ref on Beethoven.
Cheers,
Ariel
On Wed, 22 May 2002, clidman wrote:
> Dear Colleagues,
> We still have a number of ISAAC hours under our disposal. It would seem
> to me that we could do one of three things.
> i) Observe at least 2 and perhaps 3 z=0.5 SNe.
>
> - Do we have such SNe?
> - Will the ground based light curves be good enough (ie S/N > 20) to make the
> IR observations worth while.
> ii) Observe z=0.912 SNe. In very good seeing, we may be able to get good enough
> S/N. I am Paranal at the moment and I do not have access to my notes in Santiago.
> Could someone provide me with the J band magnitude at maximum light for a
> z=0.9 supernovae
>
> iii) Get a deeper reference image for Beethoven
>
> Of the three, i and ii may be the most productive things to do scientifically.
>
> Cheers, Chris.
>
-- ___________________________________________________________________ Ariel Goobar (ariel@physto.se) FYSIKUM, Stockholm University Stockholm Center for Physics, Astronomy & Biotechnology tel: +46 8 55378659
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