Binary Population Synthesis Study  

作　　者：HAN Zhanwen 

机构地区：[1]Yunnan Observatory, CAS, Kunming, 650011

出　　处：《Bulletin of the Chinese Academy of Sciences》2011年第3期177-181,共5页中国科学院院刊（英文版）

摘　　要：Binary population synthesis(BPS),an approach to evolving millions of stars(including binaries) simultaneously,plays a crucial role in our understanding of stellar physics,the structure and evolution of galaxies,and cosmology.We proposed and developed a BPS approach,and used it to investigate the formation of many peculiar stars such as hot subdwarf stars,progenitors of type la supernovae,barium stars, CH stars,planetary nebulae,double white dwarfs,blue stragglers,contact binaries,etc.We also established an evolution population synthesis(EPS) model,the Yunnan Model,which takes into account binary interactions for the first time.We applied our model for the origin of hot subdwarf stars in the study of elliptical galaxies and explained their far-UV radiation.Binary population synthesis （BPS）, an approach to evolving millions of stars （including binaries） simultaneously, plays a crucial role in our understanding of stellar physics, the structure and evolution of galaxies, and cosmology. We proposed and developed a BPS approach, and used it to investigate the formation of many peculiar stars such as hot subdwarf stars, progenitors of type la supernovae, barium stars, CH stars, planetary nebulae, double white dwarfs, blue stragglers, contact binaries, etc. We also established an evolution population synthesis （EPS） model, the Yunnan Model, which takes into account binary interactions for the first time. We applied our model for the origin of hot subdwarf stars in the study of elliptical galaxies and explained their far-UV radiation.

关 键 词：二进制文件 恒星物理 椭圆星系 行星状星云 远紫外辐射 白矮星 相互作用 BPS 

分 类 号：P144[天文地球—天体物理] TP314[天文地球—天文学]