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Fundamental parameters, including the effective temperature Teff, surface gravity logg, mass M, luminosity L, radius R, and age t, are determined for three bright, nearby K-giants, β Gem (K0 III), μ Leo (K2 III), and α Tau (K5 III), It is notable that around all three stars the giant planets have been found. Our results are compared with published high-precision data for benchmark stars included in...
A five-dimensional interpolation method and corresponding computer program are developed for using published calculations to determine the non-LTE correction ∆NLTE to the lithium abundance logε(Li) derived from the Li I 6707.8 Å line. The ∆NLTE value is determined from the following five parameters: the effective temperature Teff, the acceleration of gravity logg, the metallicity index [Fe/H], the...
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