SIMBAD references

2017MNRAS.467.2412L - Mon. Not. R. Astron. Soc., 467, 2412-2420 (2017/May-2)

Mg, Al, Si, Ca, Ti, Fe and Ni abundances for a sample of solar analogues.

LOPEZ-VALDIVIA R., BERTONE E. and CHAVEZ M.

Abstract (from CDS):

We report on the determination of chemical abundances of 38 solar analogues, including 11 objects previously identified as super-metal-rich stars. We have measured the equivalent widths for 34 lines of 7 different chemical elements (Mg, Al, Si, Ca, Ti, Fe and Ni) in high-resolution ( R ∼80 000) spectroscopic images, obtained at the Observatorio Astrofisico Guillermo Haro (Sonora, Mexico), with the Cananea High-resolution Spectrograph. We derived chemical abundances using ATLAS12 model atmospheres and the Fortran code MOOG. We confirmed the super-metallicity status of six solar analogues. Within our sample, BD+60 600 is the most metal rich star ([Fe/H] = +0.35 dex), while for HD 166991, we obtained the lowest iron abundance ([Fe/H] = -0.53 dex). We also computed the so-called [Ref] index for 25 of our solar analogues, and we found that BD+60 600 ([Ref] = +0.42) and BD+28 3198 ([Ref] = +0.34) are good targets for exoplanet search.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): techniques: spectroscopic - stars: abundances - stars: solar-type - stars: solar-type

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 41

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2023.01.31-21:12:11

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