SIMBAD references

2017AJ....153...21L - Astron. J., 153, 21-21 (2017/January-0)

Abundances in the local region. II. F, G, and K dwarfs and subgiants.


Abstract (from CDS):

Parameters and abundances have been derived for 1002 stars of spectral types F, G, and K, and luminosity classes IV and V. After culling the sample for rotational velocity and effective temperature, 867 stars remain for discussion. Twenty-eight elements are considered in the analysis. The α, iron-peak, and Period 5 transition metal abundances for these stars show a modest enhancement over solar averaging about 0.05 dex. The lanthanides are more abundant, averaging about +0.2 dex over solar. The question is: Are these stars enhanced, or is the Sun somewhat metal-poor relative to these stars? The consistency of the abundances derived here supports an argument for the latter view. Lithium, carbon, and oxygen abundances have been derived. The stars show the usual lithium astration as a function of mass/temperature. There are more than 100 planet-hosts in the sample, and there is no discernible difference in their lithium content, relative to the remaining stars. The carbon and oxygen abundances show the well-known trend of decreasing [x/Fe] ratio with increasing [Fe/H].

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): Galaxy: abundances - stars: abundances - stars: evolution - stars: fundamental parameters - stars: fundamental parameters

VizieR on-line data: <Available at CDS (J/AJ/153/21): table1.dat table2.dat table3.dat table4.dat table5.dat table7.dat>

Simbad objects: 1005

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