Since 1994, the CfA supernova program (PI R. Kirshner) has obtained ~2400 optical spectra of ~450 low-redshift (z < 0.05) Type Ia supernovae (SN Ia) with the 1.5m Tillinghast telescope at FLWO using the FAST spectrograph. I will present preliminary results from a first round of analyses of these data.
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