J/MNRAS/528/3028 Abundances of FGK primary stars (Duque-Arribas+, 2024)
Calibrating the metallicity of M dwarfs in wide physical binaries with F-, G-,
and K-primaries.
II: Carbon, oxygen, and odd-Z iron-peak abundances of the primary stars.
Duque-Arribas C., Tabernero H.M., Montes D., Caballero J.A.
<Mon. Not. R. Astron. Soc. 528, 3028-3048 (2024)>
=2024MNRAS.528.3028D 2024MNRAS.528.3028D (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Stars, late-type ;
Stars, M-type; Stars, dwarfs ; Abundances
Keywords: stars: abundances - binaries: visual - stars: fundamental parameters -
stars: late-type - stars: solar-type
Abstract:
Detailed chemical composition of stars is of prime interest for a
range of topics in modern stellar astrophysics, such as the chemical
evolution of the Galaxy or the formation, composition, and structure
of exoplanets. In this work, we derive the C and O abundances and
update Sc, V, Mn, and Co abundances considering hyperfine structure
effects (HFS) and correcting for non-local thermodynamical equilibrium
(NLTE) for a sample of 196 late-F, G-, and early-K stars with wide
resolved M-dwarf companions. We accomplished this by employing the
equivalent width (EW) method and high-resolution spectroscopic data.
Furthermore, we investigated the distributions of [X/Fe] ratios and
[C/O] as a function of metallicity ([Fe/H]) and kinematic population.
The observed trends are consistent with previous findings reported in
the literature. Additionally, we searched for confirmed exoplanets
around our primary stars in the literature and found 24 exoplanets in
17 systems, while none of the M-dwarf companions in our sample
presented confirmed exoplanets. In conclusion, our study provides
homogeneous abundances from high-resolution spectra for a large sample
of FGK primary stars, paving the way for further research on stellar
abundances of the M secondaries and exoplanetary science.
Description:
Here we present the abundances of C, O, Sc, V, Mn, and Co derived for
the sample of FGK primary stars with M dwarf companions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 191 197 Abundances [X/H] with respect to the Sun
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See also:
B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2020)
J/MNRAS/479/1332 : Binaries with F, G or K primaries & M dwarfs (Montes+, 2018)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- WDS WDS designation (HHMMm+DDMM)
13- 27 A15 --- Primary Name of the primary star
29- 46 F18.14 deg RAdeg Right ascension (J2000)
48- 66 F19.15 deg DEdeg Declination (J2000)
68- 73 A6 --- SpType Spectral type
75- 79 F5.2 --- [C/H] ? [C/H] abundance
81- 85 F5.2 --- e_[C/H] ? Uncertainty on [C/H] abundance
87- 93 F7.2 --- [O/H]LTE ? [O/H] abundance in LTE
95-102 F8.2 --- e_[O/H]LTE ? Uncertainty on [O/H] abundance (LTE)
104-108 F5.2 --- [O/H]NLTE ? [O/H] abundance in NLTE
110-114 F5.2 --- e_[O/H]NLTE ? Uncertainty on [O/H] abundance (NLTE)
116-120 F5.2 --- [Sc/H] ? [Sc/H] abundance
122-126 F5.2 --- e_[Sc/H] ? Uncertainty on [Sc/H] abundance
128-132 F5.2 --- [V/H] ? [V/H] abundance
134-138 F5.2 --- e_[V/H] ? Uncertainty on [V/H] abundance
140-144 F5.2 --- [Mn/H]LTE ? [Mn/H] abundance in LTE
146-150 F5.2 --- e_[Mn/H]LTE ? Uncertainty on [Mn/H] abundance (LTE)
152-156 F5.2 --- [Mn/H]NLTE ? [Mn/H] abundance in NLTE
158-162 F5.2 --- e_[Mn/H]NLTE ? Uncertainty on [Mn/H] abundance (NLTE)
164-168 F5.2 --- [Co/H]LTE ? [Co/H] abundance in LTE
170-174 F5.2 --- e_[Co/H]LTE ? Uncertainty on [Co/H] abundance (LTE)
176-180 F5.2 --- [Co/H]NLTE ? [Co/H] abundance in NLTE
182-186 F5.2 --- e_[Co/H]NLTE ? Uncertainty on [Co/H] abundance (NLTE)
188-191 A4 --- Notes Notes
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Acknowledgements:
Christian Duque-Arribas, chrduque(at)ucm.es
References:
Montes et al., Paper I 2018MNRAS.479.1332M 2018MNRAS.479.1332M, Cat. J/MNRAS/479/1332
(End) Christian Duque-Arribas [UCM], Patricia Vannier [CDS] 10-Jan-2024