A systematic study of NLTE abundances of nearby stars. Issue Volume 9:Issue S298(2013) (6th January 2014)

• Record Type: Journal Article
• Authors: Chen, Y. Q.; Zhao, G.; Mashonkina, L.; Shi, J. R.; Zhang, H. W.; Tan, K. F.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 9:Issue S298(2013)
• Page Start: 400
• Page End: 400
• Publication Date: 2014-01-06
• Subjects: stars:abundances, -- stars: atmospheres, -- stars:late type; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921313006674
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: Approximately 80 stars from the thin disk, the thick disk and the halo of the Galaxy, in the range of −3.0 < [ Fe / H ] < +0.5, surface gravity of 3.0 < logg < 4.7 and temperature of 4500 K < Teff < 6500 K, have been observed with the Shane/Hamilton and CFHT/Espadons spectrographs in order to carry out a systematic NLTE study of nearby stars in a consistent way. We will determine reliably stellar parameters and determine precise elemental abundances via a comprehensive NLTE analysis of the spectral lines of Li, Na, Mg, Al, Si, K, Ca, Sc, Mn, Fe, Sr, Zr, Ba, Nd, and Eu elements. Finally, we aim to investigate the chemical evolution of the Galaxy through different stellar populations based on the NLTE abundances for total 15 elements.