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Lithium abundance as a boundary condition for age and mass determination of solar twin stars

  • M. Castro (a1), J.-D. do Nascimento (a1), J. S. da Costa (a1), J. Meléndez (a2), M. Bazot (a2), S. Théado (a3), G. F. Porto de Mello (a4) and J. R. De Medeiros (a1)...

Abstract

We explore the non-standard mixing history of five solar twins to determine as precisely as possible their mass and age. For this, we computed a grid of evolutionary models with non-standard mixing at given metallicities with the Toulouse-Geneva code for a range of stellar masses. We choose the evolutionary model that best fit the low lithium abundances observed in the solar twins. Our best model for each solar twin provides a mass and age solution constrained by their Li content and Teff determination. Li depletion due to the additional mixing in solar-twins is strongly mass dependent. An accurate lithium abundance measurement connected with non-standard models provides a more precise information about the age and mass better than that determined only by classical methods.

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References

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Basu, S., Christensen-Dalsgaard, J., et al. 1997, MNRAS, 292, 243
do Nascimento, J.-D. Jr., Castro, M., et al. 2009, A&A, 501, 687
Hui-Bon-Hoa, A. 2008, Ap&SS, 316, 55
Meléndez, J. & Ramírez, I. 2007, ApJ, 669, L89
Richard, O., Vauclair, S., Charbonnel, C., & Dziembowski, W. A. 1996, A&A 312, 1000
Richard, O., Thado, S., & Vauclair, S. 2004, SoPh, 220, 243
Takeda, Y., Kawanomoto, S., Honda, S., Ando, H., & Sakurai, T. 2007, A&A, 468, 663
Théado, S. & Vauclair, S. 2003, ApJ 587, 784
vanLeeuwen, F. Leeuwen, F. 2007, ASSL, 350
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Keywords

Lithium abundance as a boundary condition for age and mass determination of solar twin stars

  • M. Castro (a1), J.-D. do Nascimento (a1), J. S. da Costa (a1), J. Meléndez (a2), M. Bazot (a2), S. Théado (a3), G. F. Porto de Mello (a4) and J. R. De Medeiros (a1)...

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