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 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:
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FileName Lrecl Records Explanations
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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)
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See also:
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
Byte-by-byte Description of file: tablea.dat
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Bytes Format Units Label Explanations
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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 AMPrad Reference model mass
136-139 F4.2 Msun AMPmass 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)
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Note (1): The asteroseismic data is from Lund et al. (2017ApJ...835..172L 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 2016MNRAS.456..119C)
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Acknowledgements:
Orlagh Creevey, orlagh.creevey(at)oca.eu
History:
04-May-2017: on-line version
18-Mar-2020: correction of labels, between AMPrad and AMPmass, that
where interversed
(End) Patricia Vannier [CDS] 13-Apr-2017