LCs and spectra of Type Ia SN 2021hpr

The progenitor system of Type Ia supernovae (SNe Ia) is expected to be a close binary system consisting of a carbon/oxygen white dwarf (WD) and a nondegenerate star or another...Ia型超新星（Type Ia supernovae, SNe Ia）的前身系统被认为是由一颗碳氧白矮星（carbon/oxygen white dwarf, WD）与一颗非简并恒星或另一颗……组成的密近双星系统。