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团组照片 PDF Print E-mail
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Sunday, 02 January 2011 12:10

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Last Updated on Thursday, 15 March 2012 15:29
 
Blue Struggle Star Models PDF Print E-mail
Written by Administrator   
Saturday, 23 October 2010 22:56

http://sss.bao.ac.cn/BS-model/

Presented here are a grid of models for Blue Straggler (BS) stars using primordial binary systems with different parameters (see Lu, Deng & Zhang 2010 for details). The detailed evolutionary scenarios are followed for both components in a given system. Case A & B mass exchange processes and their effects on the evolution of the system are calculated, composite evolutionary behaviors of the binary systems in the CMD are also studied. Simulations based such a grid of models are applied to intermediate age stellar populations, specifically for M67. Our results shows that, compared with Case A only scenario in our earlier study (Tian, Deng, Han & Zhang 2006) Case B mass exchange is very important in predicting BS content in a given population, in terms of both number counts and distributions in the CMD. All models (including both Case A & B) are available in this ftp site.

Last Updated on Sunday, 13 February 2011 09:41
 
BS Corrected SSP Models PDF Print E-mail
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Saturday, 23 October 2010 22:53

http://sss.bao.ac.cn/bss/bs_ssp_models

In this link, you can find our new models of SSP with the contribution of blue stragglers statistically included. Please refer to our paper (Xin, Deng, de Grijs & Kroupa, 2010, submitted to MNRAS).

 

Last Updated on Wednesday, 23 March 2011 11:09