| Type Ia supernovae (SN Ia) are thought to be the result of thermonuclear explosions of carbon-oxygen white dwarfs. Currently the specific details of the supernova explosion remain a topic of ongoing research. In this study, we determine whether redshift (Z) affects three key observational parameters: the amount of Ni56 produced in the explosion, the kinetic energy of the explosion and local extinction. The redshift is of interest because Z is related to "look-back" time; observations at high Z look farther back in time than those at low Z. Typically it is assumed that redshift does not affect our observations. The possible evolution of these three parameters with redshift may therefore contribute to inaccuracies at large distances. We compare Dan Kasen's 1D computer model to Sloan Digital Sky Survey (SDSS) observations in order to further validate the model, and we also investigate the evolution of the main observational parameters with redshift. |
