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J/A+A/601/A67          Kepler solar-type stars modeling         (Creevey+, 2017)

Characterizing solar-type stars from full-length Kepler data sets using the Asteroseismic Modeling Portal. Creevey O.L., Metcalfe T.S., Schultheis M., Salabert D., Bazot M., Thevenin F., Mathur S., Xu H., Garcia R.A. <Astron. Astrophys. 601, A67 (2017)> =2017A&A...601A..67C (SIMBAD/NED BibCode)
ADC_Keywords: Models ; Stars, dwarfs ; Stars, G-type Keywords: stars: fundamental parameters - stars: oscillations - stars: interiors - asteroseismology - methods: numerical Abstract: The Kepler space telescope yielded unprecedented data for the study of solar-like oscillations in other stars. The large samples of multi-year observations posed an enormous data analysis challenge that has only recently been surmounted. Asteroseismic modeling has become more sophisticated over time, with better methods gradually developing alongside the extended observations and improved data analysis techniques. We apply the latest version of the Asteroseismic Modeling Portal (AMP) to the full-length Kepler data sets for 57 stars, comprising planetary hosts, binaries, solar-analogs, active stars, and for validation purposes, the Sun. From an analysis of the derived stellar properties for the full sample, we identify a variation of the mixing-length parameter with atmospheric properties. We also derive a linear relation between the stellar age and a characteristic frequency separation ratio. In addition, we find that the empirical correction for surface effects suggested by Kjeldsen and coworkers is adequate for solar-type stars that are not much hotter (Teff≲6200K) or significantly more evolved (logg≳4.2, <Δν> ≳80uHz80) than the Sun. Precise parallaxes from the Gaia mission and future observations from TESS and PLATO promise to improve the reliability of stellar properties derived from asteroseismology. Description: This catalogue contains the observed and modelled stellar parameters of 57 Kepler stars and the Sun analysed using the Asteroseismic Modeling Portal (AMP, http://amp.phys.au.dk/). The table provides the combined data from Tables A.1, A.2, and A.3: the derived mean stellar parameters, the reference models, and complementary photometric and spectroscopic quantities from the literature used in this paper. The derived mean model parameters and uncertainties (Table A.3) are radius, mass, age, luminosity, effective temperature, surface gravity, metallicity, parallax and rotational velocity. The latter is derived using the rotation period from the literature and radius from this work. The reference model parameters (Table A.2) are radius, mass, age, initial metallicity Zi and helium Yi mass fraction, mixing-length parameter alpha, ratio of current central hydrogen to initial hydrogen mass fraction, Xc/Xi, the a0 parameter in Eq.7, and the normalised chi-squared values for the r01, r02 and spectroscopic data. The complementary data from Table A.1 are the spectroscopic effective temperatures and metallicities, the photometric 2MASS Ks magnitude, the extinction AKs in Ks band derived in this work, the rotational velocities from the literature, and references to the spectroscopic data and rotational velocities. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea.dat 265 58 Spectroscopic constraints and complementary data of the Kepler targets and the Sun, reference models and derived stellar properties using VIRGO data (Tables A1-A3 of the paper)
See also: V/133 : Kepler Input Catalog (Kepler Mission Team, 2009) Byte-by-byte Description of file: tablea.dat
Bytes Format Units Label Explanations
2- 13 A12 --- Name Kepler star name or Sun 14- 21 I8 --- KIC ? Kepler Input Catalogue identification 23- 27 F5.3 Rsun Rad Radius 29- 33 F5.3 Rsun e_Rad Radius error 35- 39 F5.3 Msun Mass Mass 41- 45 F5.3 Msun e_Mass Mass error 47- 51 F5.2 Gyr Age Age 53- 56 F4.2 Gyr e_Age Age error 58- 61 F4.2 Lsun Lum Luminosity 63- 66 F4.2 Lsun e_Lum Luminosity error 68- 71 I4 K Teff Model Effective temperature 74- 76 I3 K e_Teff Model Effective temperature error 80- 84 F5.3 [cm/s2] logg Model surface gravity 86- 90 F5.3 [cm/s2] e_logg Model surface gravity error 92- 96 F5.2 [-] [M/H] Model metallicity 98-101 F4.2 [-] e_[M/H] Model metallicity error 104-108 F5.2 mas Plx ?=-9.99 Derived parallax 110-114 F5.2 mas e_Plx ?=-9.99 Derived parallax error 116-121 F6.2 km/s Vrot ?=-9.99 Derived rotational velocity 124-128 F5.2 km/s e_Vrot ?=-9.99 Derived rotational velocity error 130-134 F5.3 Rsun AMPmass Reference model mass 136-139 F4.2 Msun AMPrad Reference model radius 141-145 F5.2 Gyr AMPage Reference model age 148-153 F6.4 --- AMPZini Reference model initial heavy element mass fraction 155-159 F5.3 --- AMPYini Reference model initial helium mass fraction 161-164 F4.2 --- AMPmlp Reference model mixing-length parameter 167-170 F4.2 --- AMPXc/Xi Reference model ratio of central to initial hydrogen mass fraction 173-177 F5.2 uHz AMPa0 Reference model a0 for surface effect, see Eq. 7 179-182 F4.2 --- Chi2Nr01 Normalised chi-squared value for the r01 frequency ratios 185-190 F6.2 --- Chi2Nr02 Normalised chi-squared value for the r02 frequency ratios 192-195 F4.2 --- Chi2Nsp Normalised chi-squared value for the spectroscopic data 198-201 I4 K Teffsp Input spectroscopic effective temperature (1) 204-206 I3 K e_Teffsp Input spectroscopic effective temperature error (1) 210-214 F5.2 [-] [M/H]sp ?=-9.99 Input spectroscopic metallicity (1) 216-220 F5.2 [-] e_[M/H]sp ?=-9.99 Input spectroscopic metallicity error (1) 222-227 F6.3 mag Ksmag ?=-9.99 2MASS K band magnitude 228-233 F6.3 mag e_Ksmag ?=-9.99 2MASS K band magnitude error 234-239 F6.3 mag AKs ?=-9.99 Extinction in Ks band 240-245 F6.3 mag e_AKs ?=-9.99 Extinction error in Ks band 247-251 F5.2 d Prot ?=-9.99 Rotational period 253-257 F5.2 d e_Prot ?=-9.99 Rotational period error 259 I1 --- r_Teffsp [1/7]? Reference to input spectroscopic data (2) 265 A1 --- r_Prot [AB-] Reference to rotational periods (2)
Note (1): The asteroseismic data is from Lund et al. (2017ApJ...835..172L) Note (2): References as follows: Spectroscopic references: 1 = Buchhave & Latham (2015, Cat. J/ApJ/808/187) 2 = Ramirez et al. (2009, J/A+A/508/L17) 3 = Pincsonneault et al. (2012, Cat. J/ApJS/199/30) 4 = Huber et al. (2013, Cat. J/ApJ/767/127) 5 = Chaplin et al. (2014, Cat. J/ApJS/210/1) 6 = Pinsonneault et al. (2014, J/ApJS/215/19) 7 = Casagrande et al. (2014, Cat. J/ApJ/787/110) Rotation period references: A = Garcia et al. (2014, Cat. J/A+A/572/A34) B = Ceillier et al. (2016MNRAS.456..119C)
Acknowledgements: Orlagh Creevey, orlagh.creevey(at)oca.eu
(End) Patricia Vannier [CDS] 13-Apr-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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