Lithium in the stellar open cluster M67

被引：0

作者：

Martins, B. L. Canto ^{[1
]}

Do Nascimento, J. D., Jr.

De Medeiros, J. R.

Lebre, A.

Richard, O.

De Laverny, P.

Melo, C.

机构：

[1] Univ Fed Rio Grande do Norte, Dept Fis, BR-59072970 Natal, RN, Brazil

[2] Univ Montpellier 2, CNRS, ISTEEM, Grp Rech Astron Astrophys Languedoc,UMR 5024, F-34095 Montpellier, France

[3] Observ Cote Azur, CNRS, Dept Cassiopee, UMR 6202, F-06304 Nice, France

[4] Univ Chile, European So Observ, Dept Astron, Santiago, Chile

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2007年 / 16卷 / 2-3期

关键词：

Li abundances; fundamental parameters; atmospheres; evolution;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this work we present atmospheric parameters and Li abundances, obtained from a detailed spectroscopic analysis, for a large sample of stars with different evolutionary stages (turn-off, subgiant and giant stars) in the open cluster M67. The observations were carried out with high resolution (R similar to 47, 000) and high S/N using the UVES+FLAMES at VLT/UT2. From available photometry and computed synthetic spectra for the region around the lithium line at 6707.75 angstrom, we derive atmospheric parameters (T-eff, log g, [Fe/H], v sin i) and Li abundances for each star, in order to better understand the level of mixing and convective dilution of evolved stars in M67.

引用

页码：391 / 396

页数：6

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