From: Ariel Goobar (ariel@physto.se)
Date: Wed Mar 24 2004 - 07:20:39 PST
HSTsearchers,
one more piece of information that I just added in the webpage. Having
a day off from teaching is great!
In fact, I now think I sounded a bit too pessimistic yesterday about
the efficiency of the selection based on SN colors. Looking ar it
today (morning always brighter than night!), I conclude that with an
I-Z>1 we would be quite sure of that we got a Ia at z>1.1. Also, I-Z with
a cut on the discovery date based on the Subaru data would be quite
robust. Let's hope I don't get pessimistic by the evening...
Gerson, Rachel: do you have now I-Z for the guys that Rob/Gerson found?
Please, compare with figures in the webpage and let me know what you
think...
Cheers,
Ariel
On Wed, 24 Mar 2004, Ariel Goobar wrote:
> Hi Gerson,
> I just had a quick look at your candidate. This is one where,
> based on the info so far, I think I would not have recommended follow-up.
> Both the SN Z-magnitude and the nearest galaxy magnitudes would set
> an _upper limit_ on the redshift at around 1.2. I have added graphs
> in my webpage showing the range of galaxy magnitudes vs z in the two
> bands we are considering. What is the magnitude of the faintest candidate
> that you think isn't a CR?
> Ariel
>
>
> On Fri, 19 Mar 2004, Gerson Goldhaber wrote:
>
> > Hi Rob,
> > Here is a good looking candidate.
> >
> > !!!!!!!!!!!!!!!!!!!!! good candidate !!!!!!!!!!!!!!!!!!
> > Position: (330.1 , 3667.0)
> > on acs02-03/nov212002acs1105drz.fts
> >
> > RA(2000) : 12:36:43.69
> > Dec(2000): +62:10:34.2
> > cheers Gerson
> >
>
>
-- ___________________________________________________________________ Ariel Goobar (www.physto.se/~ariel) Department of Physics, Stockholm University AlbaNova University Center, SE-106 91 Stockholm, SWEDEN tel: +46 8 55378659 fax: +46 8 55378601
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