The Gaia-Kepler Stellar Properties Catalog. I. Homogeneous Fundamental Properties for 186,301 Kepler Stars
The Gaia-Kepler Stellar Properties Catalog. I. Homogeneous Fundamental Properties for 186,301 Kepler Stars
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DOI：
10.3847/1538-3881/159/6/280
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发表时间：
2020-06-01
影响因子：
5.3
通讯作者：
Kraus, Adam L.
中科院分区：
文献类型：
--
作者：
Berger, Travis A.;Huber, Daniel;Kraus, Adam L.
一份准确和精确的开普勒恒星属性表是解释开普勒系外行星调查结果的关键。以前的开普勒恒星特性星表侧重于报告每颗恒星的最佳可用参数，但这需要综合来自各种不同来源的数据。我们介绍了Gaia-Kepler恒星属性表，这是一组186,301颗开普勒恒星的恒星属性，均匀地来自等时和宽带测光，Gaia数据发布2视差，以及光谱金属率，如果有的话。我们的测光有效温度来自颜色，是用干涉角直径在恒星上校准的。星表不确定度的中位数为：T-Eff为112K，LOG为0.05Dex，R-STAR为4%，M-STAR为7%，Rho(恒星)为13%，L-STAR为10%，恒星年龄为56%。这些对恒星属性的精确限制将使我们能够史无前例地研究恒星和系外行星属性随恒星质量和年龄的变化趋势。此外，我们的同质参数测定将允许更准确地计算具有恒星性质的行星的出现和趋势。
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 186,301 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 colors, are calibrated on stars with interferometric angular diameters. Median catalog uncertainties are 112 K for for T-eff, 0.05 dex for log g, 4% for R-star, 7% for M-star, 13% for rho(star), 10% for L-star, 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.