CSI in Type Ia Supernova Remnants / 朱有花 教授 (中研院天文所 所長,特聘研究員)ഀ ഀ Type Ia supernovae have been used to discover the acceleratedഀ expansion of the Universe and gained Nobel Prize; however, whether theirഀ progenitors involve one white dwarf in a binary system or two white dwarfs inഀ a binary system is unknown. If a surviving stellar companion of the supernovaഀ progenitor can be found, the former scenario can be affirmed. We have usedഀ the Type Ia supernova remnants in the Large Magellanic Clouds to studyഀ problems associated with Type Ia supernovae, as in crime scene investigationഀ (CSI). This talk reports our work and preliminary results.