THE ABSENCE OF EX-COMPANIONS IN TYPE Ia SUPERNOVA REMNANTS
THE ABSENCE OF EX-COMPANIONS IN TYPE Ia SUPERNOVA REMNANTS
Type Ia supernovae (SNe Ia) play important roles in our study of the expansion and acceleration of the Universe, but because we do not know the exact nature or natures of the progenitors, there is a systematic uncertainty that must be resolved if SNe Ia are to become more precise …