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Implementation of New OPAL Tables in Eggleton's Stellar Evolution Code
XueFei Chen1; Christopher A Tout2
2007
Source PublicationChinese Journal of Astronomy and Astrophysics
ISSN1009-9271
Volume7Issue:2Pages:245
AbstractBased on previous works of OPAL, we construct a series of opacity tables for various metallicities Z = 0, 0.000 01, 0.000 03, 0.000 1, 0.000 3, 0.001, 0.004, 0.01, 0.02,0.03, 0.04, 0.05, 0.06, 0.08 and 0.1. These tables can be easily used in Eggleton's stellar evolution code in place of the old tables without changing the code. The OPAL tables are used for log10 (T/K) > 3.95 and Alexander's for log10 (T/K) < 3.95. At log10 (T/K) - 3.95, the two groups' data fit well for all hydrogen mass fractions. Conductive opacities are included by reciprocal addition according to the formulae of Yakovlev and Urpin. A comparison of 1 and 5 M⊙ models constructed with the older OPAL tables of Iglesias and Rogers shows that the new opacities have most effect in the late stages of evolution, the extension of the blue loop during helium burning for intermediate-mass and massive stars.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/44945
Collection中国科学院国家天文台
Affiliation1.中国科学院国家天文台
2.Institute of Astronomy, The Observatories, Madingley Road
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
XueFei Chen,Christopher A Tout. Implementation of New OPAL Tables in Eggleton's Stellar Evolution Code[J]. Chinese Journal of Astronomy and Astrophysics,2007,7(2):245.
APA XueFei Chen,&Christopher A Tout.(2007).Implementation of New OPAL Tables in Eggleton's Stellar Evolution Code.Chinese Journal of Astronomy and Astrophysics,7(2),245.
MLA XueFei Chen,et al."Implementation of New OPAL Tables in Eggleton's Stellar Evolution Code".Chinese Journal of Astronomy and Astrophysics 7.2(2007):245.
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