Discovery of a pair instability supernova ignites excitement about the first stars  

作　　者：Timothy C.Beers 

机构地区：[1]Department of Physics and Astronomy and JINA Center for the Evolution of the Elements,University of Notre Dame,Notre Dame 46556,USA

出　　处：《Science China(Physics,Mechanics & Astronomy)》2023年第9期198-199,共2页中国科学：物理学、力学、天文学（英文版）

摘　　要：For decades,astronomers have predicted that Pair Instability Supernovae(PISNe)might occur when a massive star(140-260 solar masses,M☉)reaches the end of its life,and suffers a cataclysmic explosion due to the transformation of gamma rays in its interior into pairs of free electrons and positrons,robbing the star of the radiation pressure required to support itself against gravity.

关 键 词：STARS MASSIVE SUPERNOVA 

分 类 号：P145.3[天文地球—天体物理]