A Precise Distance Indicator: Type Ia Supernova Multicolor Light‐Curve Shapes
A Precise Distance Indicator: Type Ia Supernova Multicolor Light‐Curve Shapes
We present an empirical method that uses multicolor light-curve shapes (MLCSs) to estimate the luminosity, distance, and total line-of-sight extinction of Type Ia supernovae (SNe Ia). The empirical correlation between the MLCSs and the luminosity is derived from a " training set" of nine SN Ia light curves with independent …