论文标题
Gaia-kepler恒星特性目录。 I. 186,301个开普勒星的同质基本属性
The Gaia-Kepler Stellar Properties Catalog. I. Homogeneous Fundamental Properties for 186,301 Kepler Stars
论文作者
论文摘要
准确，精确的开普勒恒星特性目录对于解释开普勒系外行星调查结果至关重要。以前的开普勒恒星属性目录专注于报告每个恒星的最佳可用参数，但这需要组合来自各种异质源的数据。我们介绍了Gaia-Chepler恒星特性目录，这是一组186,301个开普勒星的恒星特性，均质源自等线和宽带光度法，Gaia Data Release 2 Parallaxes和光谱金属率均可在可用的地方。我们的光度有效温度来自$ g-k_s $颜色，在具有干涉角直径的恒星上校准。中位数目录的不确定性为$ t _ {\ mathrm {eff}} $，$ \ log g $的0.05 dex为112 k，对于$ r_ \ star $，$ r_ \ star $ 4％，$ m_ \ star $，$ m_ \ star $，13％，13％的$ρ_\ star $ for star $，10％的$ l_ \ l_ \ l_ \ l_ \ star $ for star $ for star $ s for star for Star for Star age for 56％。这些恒星样本对恒星特性的这些精确限制将允许对恒星和系外行星特性的趋势进行前所未有的研究，这是恒星质量和年龄的函数。此外，我们的同质参数确定将允许对行星发生和具有恒星特性的趋势进行更准确的计算。
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 $g-K_s$ colors, are calibrated on stars with interferometric angular diameters. Median catalog uncertainties are 112 K for $T_{\mathrm{eff}}$, 0.05 dex for $\log g$, 4% for $R_\star$, 7% for $M_\star$, 13% for $ρ_\star$, 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.
