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金属丰度和对流超射对恒星演化影响的初步探讨
The approach with star evolution of 5M_⊙ influence by metal abundant and over shoot
【摘要】 文章采用了pd90程序模拟了5 M⊙的恒星,在主序和主序后的演化情况。并且根据其程序给出的计算结果,绘出了5 M⊙恒星的赫罗图。选择金属丰度和对流超射的不问参数,形成六条赫罗图线。在赫罗图中,对5 M⊙的恒星其金属丰度和对流超射对恒星演化的影响进行讨论。从赫罗图中的lgL/L⊙和lgTeff,与演化时间序列图,可以直观的得出金属丰度和对流超射变化对恒星演化的影响。
【Abstract】 This article used the program which be named of pd90 to simulate 5M⊙ star evolution in the main sequence and the over main sequence.By this program’s results we computed and drew up the H-R map.And chosen the different value of metal abundant and over shoot it came out six H-R lines.In the H-R map we analyzed these lines of 5M⊙ in metal abundant and over shoot changed.In the H-R map,we could directly perceive the evolution change through lg L/L⊙ and lg Teff between the program time—step.
【基金】 国家自然科学基金资助项目(10433010)
- 【文献出处】 云南师范大学学报(自然科学版) ,Journal of Yunnan Normal University(Natural Sciences Edition) , 编辑部邮箱 ,2007年01期
- 【分类号】P15
- 【被引频次】3
- 【下载频次】116