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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 105 10 Stellar parameters
table2.dat 204 10 Abundance ratios
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See also:
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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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
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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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]
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Acknowledgements:
Poul Erik Nissen, pen(at)phys.au.dk
(End) Poul Erik Nissen [Aarhus University], Patricia Vannier [CDS] 12-Oct-2017