Verifying the Cosmological Utility of Type Ia Supernovae: Implications of a Dispersion in the Ultraviolet Spectra

We analyze the mean rest-frame ultraviolet (UV) spectrum of Type Ia Supernovae (SNe Ia) and its dispersion using high signal-to-noise Keck-I/LRIS-B spectroscopy for a sample of 36 events at intermediate redshift (z=0.5) discovered by the Canada-France-Hawaii Telescope Supernova Legacy Survey (SNLS)....

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Bibliographic Details
Main Authors: Ellis, R, Sullivan, M, Nugent, P, Howell, D, Gal-Yam, A, Astier, P, Balam, D, Balland, C, Basa, S, Carlberg, R, Conley, A, Fouchez, D, Guy, J, Hardin, D, Hook, I, Pain, R, Perrett, K, Pritchet, C, Regnault, N
Format: Journal article
Published: 2007