Evolution of 0. 7--3. 0 M/sub sun/ stars having -1. 0< or =(Fe/H)< or =0. 0
Evolution of 0. 7--3. 0 M/sub sun/ stars having -1. 0< or =(Fe/H)< or =0. 0
复制标题
0。7--3的演变。
DOI:
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发表时间:
1985
期刊:
影响因子:
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通讯作者:
D. VandenBerg
中科院分区:
文献类型:
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作者:
D. VandenBerg
Five grids of stellar models have been calculated for masses ranging from 0.7 to 3.0 M/sub sun/ assuming, in turn, a metal abundance (Fe/H) = -1.0, -0.76, -0.46, -0.23, and 0.0. All of the calculations are based on a value of Y = 0.25 for the helium content and ..cap alpha.. = 1.6 for the ratio of the mixing length to the pressure scale height. The latest improvements in opacity data and nuclear reaction rates have been incorporated into the computations. Moreover, model atmospheres have been used to provide the boundary conditions for the stellar interior calculations as well as to transpose the isochrones, computed for ages from 0.3 x 10/sup 9/ to 15 x 10/sup 9/ yr, from the theoretical to the (M/sub v/, B-V)-plane. Cousins V-I and V-R colors are also predicted for each of the model sequences, which are extensively tabulated.