low-metallicity SN

From: Greg Aldering (aldering@panisse.lbl.gov)
Date: Thu May 16 2002 - 19:17:08 PDT

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Since I'm traveling I don't have access to all the relavent
information, but I do know that the host of one of the z ~ 0.5 SN Ia's
from this run add low luminosity (about that of the LMC) and strong
OIII. Both are indicative of low metallicity. Unfortunately the spectrum
has very little UV coverage, so the correspondence between SN UV brightness
and host metallicity cannot be established. This was an arguement for
obtaining a bluer spectrum. NIR follow-up might also be worth consdering,
but not at the expense of our z ~ 1+ SN Ia's.

This object is what Saul was referring to as low-metallicity z ~ 0.49 SN.

Cheers,

Greg

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