New grids of stellar models including tidal-evolution constants up to carbon burning IV. From 0.8 to 125 Mo: High metallicities (Z= 0.04-0.10)

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作者：

Claret, A. ^{[1
]}

机构：

[1] Instituto de Astrofísica de Andalucía, CSIC, Apartado 3004, 18080 Granada, Spain

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| 1600年 / EDP Sciences, 17 Avenue du Hoggar - BP 112, Les Ulis Cedex A, F-91944, France卷 / 467期

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Aims. The aim of the present grid of stellar models is to complete our previous calculations and provide a tool for investigating the astrophysical properties of eclipsing binaries; stellar clusters; galactic bulges; and elliptical galaxies with a high metal content. Methods. To explore the applicability of high metallic models; we have computed three grids: (X; Z) = (0.64; 0.04); (0.58; 0.06); and; (0.46; 0.10). For all these grids; we adopted an enrichment law ΔX/ΔZ = 2.0; as in our previous papers on this subject. The input physics is almost the same as adopted in our earlier work except for some numerical details; recent measurement of the rate for the reaction 14N(p; y)15O; and the recent mass-loss rate for the Wolf-Rayet stages. Results. Two high-metallicity clusters; NGC 6253 and NGC 6791; were used to test the present calculations with very satisfactory results. On the other hand; as this series of grids was mainly designed to investigate the tidal evolution of close binaries; we analyse the present status of circularization times in both clusters and isolated binaries. The present models (90 tables) can be retrieved from the CDS via anonymous ftp. © ESO 2007;

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Journal article (JA)

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