SIMBAD references

2014AJ....147..137L - Astron. J., 147, 137 (2014/June-0)

Parameters and abundances in luminous stars.


Abstract (from CDS):

Parameters and abundances for 451 stars of spectral types F, G, and K of luminosity classes I and II have been derived. Absolute magnitudes and E(B - V) have been derived for the warmer stars in order to investigate the galactic abundance gradient. The value found here: d[Fe/H]/dR ∼ -0.06 dex/kpc, agrees well with previous determinations. Stellar evolution indicators have also been investigated with the derived C/O ratios indicating that standard CN processing has been operating. Perhaps the most surprising result found in these supposedly relatively young intermediate-mass stars is that both [O/Fe] and [C/Fe] show a correlation with [Fe/H] much the same as found in older populations. While the stars were selected based on luminosity class, there does exist a significant [Fe/H] range in the sample. The likely explanation of this is that there is a significant range in age in the sample; that is, some of the sample are low-mass red-giant stars with types that place them within the selection criteria.

Abstract Copyright:

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

VizieR on-line data: <Available at CDS (J/AJ/147/137): table1.dat table2.dat table3.dat table4.dat table5.dat>

Simbad objects: 457

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