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机译:Do spectra improve distance measurements of Type Ia supernovae?
Centre de Physique des Particules de Marseille (CPPM), CNRS, IN2P3, 163 avenue de Luminy, 13288 Marseille Cedex 9, France;
Harvard-Smithsonian Center for Astrophysics (CfA), 60 Garden Street, Cambridge, MA 02138, United States;