典型文献
Evaluating Helium Variations By Modeling Red Giant Branch Bump of Large Magellanic Cluster NGC 1978
文献摘要：
Many evidences show that the Multiple Population(MP)features exist not only in old clusters but also in intermediate-age clusters in the Megallanic Clouds(MCs),which are characterized by star-to-star abundance scatter of several elements,including helium(He).The red giant branch bump(RGBB)'s photometric properties are proved to be related to the variation in helium abundances of the member stars in star clusters.We use the"Modules for Experiments in Stellar Astrophysics"(MESA)stellar evolution code to calculate the evolution sequences of stars along the red giant branch(RGB)with changing helium content.Following the RGB sequences,we then generate a luminosity function of the RGB stars within the grid of input helium abundances,which are compared with the observational data of an intermediate-age MC cluster NGC 1978.
文献关键词：
中图分类号：
作者姓名：
Xin Ji;Cheng-Yuan Li;Li-Cai Deng
作者机构：
Key Laboratory for Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China;School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China;School of Physics and Astronomy,Sun Yat-sen University,Zhuhai 519082,China;Department of Astronomy,School of Physics and Astronomy,China-West Normal University,Nanchong 637002,China
文献出处：
引用格式：
[1]Xin Ji;Cheng-Yuan Li;Li-Cai Deng-.Evaluating Helium Variations By Modeling Red Giant Branch Bump of Large Magellanic Cluster NGC 1978)[J].天文和天体物理学研究,2022(03):72-79
A类：
Magellanic,Megallanic,RGBB
B类：
Evaluating,Helium,Variations,By,Modeling,Red,Giant,Branch,Bump,Large,Cluster,NGC,Many,evidences,show,that,Multiple,Population,MP,features,exist,not,only,old,clusters,but,also,intermediate,Clouds,MCs,which,characterized,by,scatter,several,elements,including,helium,giant,branch,bump,photometric,properties,proved,related,variation,abundances,member,stars,We,use,Modules,Experiments,Stellar,Astrophysics,MESA,stellar,evolution,code,calculate,sequences,along,changing,content,Following,we,then,generate,luminosity,function,within,grid,input,compared,observational,data
AB值：
0.602765
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
