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Modeling blue stragglers in young clusters |
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| Authors: | Pin Lu Li-Cai Deng Xiao-Bin Zhang Key Laboratory of Optical Astronomy National Astronomical Observatories Chinese Academy of Sciences Beijing China Graduate University of Chinese Academy of Sciences Beijing |
| Institution: | Pin Lu1,2,Li-Cai Deng1 and Xiao-Bin Zhang1 1 Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China,2 Graduate University of Chinese Academy of Sciences,Beijing 100049 |
| Abstract: | A grid of binary evolution models are calculated for the study of a blue straggler(BS) population in intermediate age(log Age = 7.85 8.95) star clusters.The BS formation via mass transfer and merging is studied systematically using our models.Both Case A and B close binary evolutionary tracks are calculated for a large range of parameters.The results show that BSs formed via Case B are generally bluer and even more luminous than those produced by Case A.Furthermore,the larger range in orbital separations of... |
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