1 C.S.J. Pun, E.A. Michael, S.A. Zhekov, R.A. McCray, P.. Garnavich, P.M. Challis, R.. Kirshner, E.. Baron, D.. Branch, R.A. Chevalier, A.V. Filippenko, C.. Fransson, B.. Leibundgut, P.. Lundqvist, N.. Panagia, M.M. Phillips, B.. Schmidt, G.. Sonneborn, N.B. Suntzeff, L.. Wang, and J.C. Wheeler, The Astrophysical Journal 572, (2002).