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J/A+A/608/A112    Kepler LEGACY stars high-precision abundances  (Nissen+, 2017)

High-precision abundances of elements in Kepler LEGACY stars. Verification of trends with stellar age. Nissen P.E., Silva Aguirre V., Christensen-Dalsgaard J., Collet R., Grundahl F., Slumstrup D. <Astron. Astrophys. 608, A112 (2017)> =2017A&A...608A.112N (SIMBAD/NED BibCode)
ADC_Keywords: Stars, nearby ; Abundances Keywords: stars: abundances - stars: fundamental parameters - stars: oscillations - planet-star interactions - Galaxy: disk - Galaxy: evolution Abstract: HARPS-N spectra with S/N>250 and MARCS model atmospheres were used to derive abundances of C, O, Na, Mg, Al, Si, Ca, Ti, Cr, Fe, Ni, Zn, and Y in ten stars from the Kepler LEGACY sample including the binary pair 16 Cyg A and B. Stellar gravities and ages were obtained from seismic data and effective temperatures were determined by comparing non-LTE iron abundances derived from FeI and FeII lines. Available non-LTE corrections were also applied when deriving abundances of the other elements. Description: Stellar parameters are given in Table 1 and abundance ratios relative to Fe in Table 2. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 105 10 Stellar parameters table2.dat 204 10 Abundance ratios
See also: V/133 : Kepler Input Catalog (Kepler Mission Team, 2009) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 8 I8 --- KIC Kepler Input Catalog number (Cat. V/133) 12- 21 A10 --- ID Object name 27- 29 I3 --- S/N Signal-to-noise ratio of HARPS-N spectrum 33- 36 I4 K Teff(ion) Effective temperature from ionization balance 39- 40 I2 K e_Teff(ion) rms uncertainty of Teff(ion) 44- 47 I4 K Teff(exc) Effective temperature from excitation balance 50- 51 I2 K e_Teff(exc) rms uncertainty of Teff(exc) 55- 60 F6.3 [Sun] [Fe/H] Logarithmic Fe/H ratio 63- 67 F5.3 [Sun] e_[Fe/H] rms uncertainty of [Fe/H] 71- 74 F4.2 km/s Vturb Microturbulence parameter 77- 80 F4.2 km/s e_Vturb rms uncertainty of microturbulence parameter 84- 88 F5.3 [cm/s2] logg Logarithmic surface gravity 92- 94 F3.1 Gyr Age Stellar asteroseismic age 97- 99 F3.1 Gyr e_Age rms uncertainty of stellar age 103-105 F3.1 km/s vsini Projected equatorial rotation velocity
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 8 I8 --- KIC Kepler Input Catalog number (Cat. V/133) 11- 16 F6.3 [Sun] [Fe/H] Logarithmic Fe/H ratio 18- 22 F5.3 [Sun] e_[Fe/H] rms uncertainty of [Fe/H] 25- 30 F6.3 [Sun] [C/Fe] Logarithmic C/Fe ratio 32- 36 F5.3 [Sun] e_[C/Fe] rms uncertainty of [C/Fe] 39- 44 F6.3 [Sun] [O/Fe] Logarithmic O/Fe ratio 46- 50 F5.3 [Sun] e_[O/Fe] rms uncertainty of [O/Fe] 53- 58 F6.3 [Sun] [Na/Fe] Logarithmic Na/Fe ratio 60- 64 F5.3 [Sun] e_[Na/Fe] rms uncertainty of [Na/Fe] 67- 72 F6.3 [Sun] [Mg/Fe] Logarithmic Mg/Fe ratio 74- 78 F5.3 [Sun] e_[Mg/Fe] rms uncertainty of [Mg/Fe] 81- 86 F6.3 [Sun] [Al/Fe] Logarithmic Al/Fe ratio 88- 92 F5.3 [Sun] e_[Al/Fe] rms uncertainty of [Al/Fe] 95-100 F6.3 [Sun] [Si/Fe] Logarithmic Si/Fe ratio 102-106 F5.3 [Sun] e_[Si/Fe] rms uncertainty of [Si/Fe] 109-114 F6.3 [Sun] [S/Fe] Logarithmic S/Fe ratio 116-120 F5.3 [Sun] e_[S/Fe] rms uncertainty of [S/Fe] 123-128 F6.3 [Sun] [Ca/Fe] Logarithmic Ca/Fe ratio 130-134 F5.3 [Sun] e_[Ca/Fe] rms uncertainty of [Ca/Fe] 137-142 F6.3 [Sun] [Ti/Fe] Logarithmic Ti/Fe ratio 144-148 F5.3 [Sun] e_[Ti/Fe] rms uncertainty of [Ti/Fe] 151-156 F6.3 [Sun] [Cr/Fe] Logarithmic Cr/Fe ratio 158-162 F5.3 [Sun] e_[Cr/Fe] rms uncertainty of [Cr/Fe] 165-170 F6.3 [Sun] [Ni/Fe] Logarithmic Ni/Fe ratio 172-176 F5.3 [Sun] e_[Ni/Fe] rms uncertainty of [Ni/Fe] 179-184 F6.3 [Sun] [Zn/Fe] Logarithmic Zn/Fe ratio 186-190 F5.3 [Sun] e_[Zn/Fe] rms uncertainty of [Zn/Fe] 193-198 F6.3 [Sun] [Y/Fe] Logarithmic Y/Fe ratio 200-204 F5.3 [Sun] e_[Y/Fe] rms uncertainty of [Y/Fe]
Acknowledgements: Poul Erik Nissen, pen(at)
(End) Poul Erik Nissen [Aarhus University], Patricia Vannier [CDS] 12-Oct-2017
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