From: Saul Perlmutter (saul@lbl.gov)
Date: Mon Jul 12 2004 - 10:08:09 PDT
...The i-z color is 1.05, and this appear quite consistant with a Ia at
z ~ 1.5, but only consistant with a small fraction of the core-collapse
SNe at that redshift -- so this may help our odds. We also note that
the magnitude would be consistant with a stretch=1 at max (and in fact a
little bit bright, even). I'm not sure what to conclude from that,
since I guess it could still be a Ibc.
Greg Aldering wrote:
>Given that our best candidate, acs04c-014, appears to be sitting on a
>knot in a starburst galaxy, we really should try to determine whether
>that specific knot is starbursting (as we said in the proposal we would
>do). Do we have a (relative) color image (preferably including the
>added depth in z-band relative to the GOODS color image) of this
>region? We could use this differentially to compare the colors of the
>two knots, and compare our knot with other cruff which might have been
>in the ground-based aperture.
>
>Without more info, and under the assumption that the knot hosting the
>SN is undergoing a starburst, it seems to me about 50-50 that this is a
>CC SN as opposed to a Ia.
>
>- Greg
>
>P.S. I tried to send to hstsearch@lbl.gov, but was denied. Tony, I thought
> has this all straighten out?!
>
>
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