Some problems associated with the standardization of the light curve of type 1a supernovae

A. P. Mahtessian, G. S. Karapetian, H. F. Khachatryan +4

We show that the parameters used to standardize the luminosity of Type 1a supernovae in the SALT2 and SiFTO models are strongly dependent on the redshift z. Consequently, when stan…