J/AJ/159/280 Gaia-Kepler stellar properties catalog.I. KIC stars (Berger+, 2020)
The Gaia-Kepler stellar properties catalog.
I. Homogeneous fundamental properties for 186301 Kepler stars.
Berger T.A., Huber D., Van Saders J.L., Gaidos E., Tayar J., Kraus A.L.
<Astron. J., 159, 280-280 (2020)>
=2020AJ....159..280B 2020AJ....159..280B (SIMBAD/NED BibCode)
ADC_Keywords: Stars, giant; Infrared; Optical; Parallaxes, trigonometric;
Abundances, [Fe/H]; Stars, masses; Stars, diameters; Stars, ages;
Effective temperatures
Keywords: Catalogs; Fundamental parameters of stars; Exoplanet systems
Abstract:
An accurate and precise Kepler Stellar Properties Catalog is essential
for the interpretation of the Kepler exoplanet survey results.
Previous Kepler Stellar Properties Catalogs have focused on reporting
the best-available parameters for each star, but this has required
combining data from a variety of heterogeneous sources. We present the
Gaia-Kepler Stellar Properties Catalog, a set of stellar properties of
186301 Kepler stars, homogeneously derived from isochrones and
broadband photometry, Gaia Data Release 2 parallaxes, and
spectroscopic metallicities, where available. Our photometric
effective temperatures, derived from g to Ks colors, are calibrated on
stars with interferometric angular diameters. Median catalog
uncertainties are 112K for Teff, 0.05dex for logg, 4% for R*, 7% for
M*, 13% for ρ*, 10% for L*, and 56% for stellar age. These
precise constraints on stellar properties for this sample of stars
will allow unprecedented investigations into trends in stellar and
exoplanet properties as a function of stellar mass and age. In
addition, our homogeneous parameter determinations will permit more
accurate calculations of planet occurrence and trends with stellar
properties.
Description:
In this paper, we utilize Gaia DR2 parallaxes, homogeneous stellar g
and Ks photometry, and spectroscopic metallicities, where available,
to improve on previous analyses and present the most accurate,
homogeneous, and precise analysis of stars in the Kepler field. We
re-derive stellar Teff, logg, radii, masses, densities, luminosities,
and ages for 186301 Kepler targets, and investigate the stellar
properties of a number of noteworthy Kepler exoplanet-hosting stars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 95 186548 Gaia-Kepler Stellar input parameters
table2.dat 222 186301 Gaia-Kepler Stellar output parameters
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
VII/233 : The Two Micron All Sky Survey: Extended sources (Skrutskie+, 2006)
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
J/AJ/142/112 : KIC photometric calibration (Brown+, 2011)
J/AJ/144/24 : The Kepler-INT survey (Greiss+, 2012)
J/ApJS/211/2 : Revised stellar properties of Kepler targets (Huber+, 2014)
J/ApJ/809/25 : Stellar and planet properties for K2 candidates (Montet+, 2015)
J/A+A/588/A87 : Seismic global parameters of 6111 KIC (Vrard+, 2016)
J/ApJS/224/2 : K2 EPIC stellar properties for 138600 targets (Huber+, 2016)
J/AJ/154/107 : California-Kepler Survey (CKS). I. 1305 stars (Petigura+, 2017)
J/ApJ/844/102 : KIC star plxs from asteroseismology vs Gaia (Huber+, 2017)
J/ApJS/229/30 : Revised stellar properties of Q1-17 Kepler (Mathur+, 2017)
J/ApJ/866/99 : Radii of Kepler stars & planets using Gaia DR2 (Huber+, 2018)
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 identifier
10- 16 F7.4 mag gmag [6.24/22.1] g band magnitude (1)
18- 23 F6.4 mag e_gmag [0.02/0.18] Uncertainty in gmag
25- 31 F7.4 mag Ksmag [4.33/21.9] Ks band magnitude (2)
33- 37 F5.3 mag e_Ksmag [0.01/0.11] Uncertainty in Ksmag
39- 45 F7.4 mas plx [0.001/83.6] Gaia DR2 Parallax
47- 52 F6.4 mas e_plx [0.01/1.3] Uncertainty in Par
54- 59 F6.3 [-] [Fe/H] [-2.56/0.75]? Spectroscopic metallicity (3)
61- 64 F4.2 [-] e_[Fe/H] [0.15]? Uncertainty in [Fe/H]
66- 72 F7.4 --- RUWE [0.63/73.5] Re-normalized unit-weight error (4)
74- 74 I1 --- Ncomp [0/6]? Number, Gaia DR2 companions within 4"
76- 89 A14 --- KsCorr Potential corrections compared to 2MASS Ks (5)
91- 95 A5 --- State [RGB clump] Evolutionary State (6)
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Note (1): g-band photometry from either the Kepler Input Catalog
(Brown+, 2011 J/AJ/142/112) or the Kepler-INT Survey
(Greiss+, 2012, J/AJ/144/24) corrected as in Section 2.2.
Note (2): 2MASS Ks band photometry with corrections as defined in Section 2.2.
Note (3): Spectroscopic metallicity from the Kepler Stellar Properties
Catalog (Mathur+, 2017, J/ApJS/229/30), the California-Kepler Survey
(Petigura+, 2017, J/AJ/154/107), APOGEE DR14
(Abolfathi+, 2018ApJS..235..42A), and/or LAMOST DR5
(Ren+, 2018MNRAS.477.4641R 2018MNRAS.477.4641R).
Note (4): RUWE is the magnitude and color independent re-normalization
of the astrometric χ2 of Gaia DR2 (unit-weight error or UWE).
Note (5): Corrections as follows:
BinDet_NoCorr = Kepler star with one Gaia resolved companion but no
correction (10173 occurrences)
BinaryCorr = Kepler star with one Gaia resolved companion with a correction
(19704 occurrences)
TerDet_NoCorr = Multiple resolved companions; no correction
(376 occurrences)
TerDet_BinCorr = Multiple resolved companions; correction based on 1
companion (1639 occurrences)
TertiaryCorr = Multiple resolved companions; correction based on multiple
companions (1582 occurrences)
Note (6): Red giant evolutionary state flags (6956 RGB or 7840 clump (for Red
Clump)), Vrard+, 2016, J/A+A/588/A87; Hon+, 2018MNRAS.476.3233H 2018MNRAS.476.3233H.
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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 identifier
10- 14 F5.3 Msun Mass [0.1/4.99] Isochrone derived stellar mass
16- 20 F5.3 Msun E_Mass [0.001/2.2] Upper error on Mass
22- 27 F6.3 Msun e_Mass [-2.23/-0.001] Lower error on Mass
29- 35 F7.1 K Teff [2475/19044] Isochrone derived effective
temperature
37- 42 F6.1 K E_Teff [1.6/4960] Upper error on Teff
44- 50 F7.1 K e_Teff [-4051/-3.2] Lower error on Teff
52- 57 F6.3 [cm/s2] logg [-0.85/5.24] Isochrone derived surface gravity
59- 63 F5.3 [cm/s2] E_logg [0.002/4.07] Upper error on logg
65- 70 F6.3 [cm/s2] e_logg [-3.27/-0.001] Lower error on logg
72- 77 F6.3 [-] [Fe/H] [-2.26/0.6] Isochrone derived surface
metallicity
79- 83 F5.3 [-] E_[Fe/H] [0.002/0.68] Upper error on [Fe/H]
85- 90 F6.3 [-] e_[Fe/H] [-0.6/-0.002] Lower error on [Fe/H]
92- 98 F7.3 Rsun Rad [0.13/588] Isochrone derived stellar radius
100-106 F7.3 Rsun E_Rad [0.001/177] Upper error on Rad
108-115 F8.3 Rsun e_Rad [-112/-0.001] Lower error on Rad
117-122 F6.3 [-] rho [-8.08/1.65] Isochrone derived density
124-129 F6.3 [-] E_rho [-8.37/1.92] Upper error on rho
131-136 F6.3 [-] e_rho [-8.5/1.08] Lower error on rho
138-143 F6.3 [Lsun] Lum [-2.87/4.1] Isochrone derived luminosity
145-150 F6.3 [Lsun] E_Lum [-4/3.87] Upper error on Lum
152-157 F6.3 [Lsun] e_Lum [-3.91/3.6] Lower error on Lum
159-163 F5.2 Gyr Age [0.1/19.5] Isochrone derived age
165-165 A1 --- f_Age [*] Age flag (1)
167-171 F5.2 Gyr E_Age [0/18] Upper error on Age
173-178 F6.2 Gyr e_Age [-17.5/0] Lower error on Age
180-186 F7.1 pc Dist [11.9/14475] Isochrone derived distance
188-193 F6.1 pc E_Dist [0.3/5385] Upper error on Dist
195-201 F7.1 pc e_Dist [-4525/-0.3] Lower error on Dist
203-207 F5.3 mag Avmag [0/3.26] Isochrone derived V-band extinction
209-214 F6.4 --- GOF [0/1] Combined likelihood goodness-of-fit
216-222 F7.2 Gyr TAMS [0.1/2842] Terminal age of the main sequence
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Note (1): Ages with uninformative posteriors (TAMS>20 Gyr) or unreliable ages
(GOF<0.99) are flagged with an asterisk (26581 occurrences).
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History:
From electronic version of the journal
References:
Berger et al. Paper II: 2020AJ....160..108B 2020AJ....160..108B
(End) Prepared by [AAS], Coralie Fix [CDS], 29-Sep-2020