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Optical Spectra of Type I[CLC]a[/CLC] Supernovae at [CLC][ITAL]z[/ITAL][/CLC] = 0.46 and [CLC][ITAL]z[/ITAL][/CLC] = 1.2
We present optical spectra, obtained with the Keck 10 m telescope, of two high-redshift Type Ia supernovae (SNe Ia) discovered by the High-z Supernova Search Team: SN 1999ff at z = 0.455 and SN 1999fv at z ~ 1.2, the highest redshift published SN Ia spectrum. Both SNe were at …