文章基本信息

标题：The California-Kepler Survey. II. Precise Physical Properties of 2025 Kepler Planets and Their Host Stars*
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作者：John Asher Johnson ; Erik A. Petigura ; Benjamin J. Fulton 等
期刊名称：The Astronomical journal
印刷版ISSN：0004-6256
电子版ISSN：1538-3881
出版年度：2017
卷号：154
期号：3
DOI：10.3847/1538-3881/aa80e7
语种：English
出版社：American Institute of Physics
摘要：We present stellar and planetary properties for 1305 Kepler Objects of Interest hosting 2025 planet candidates observed as part of the California-Kepler Survey. We combine spectroscopic constraints, presented in Paper I, with stellar interior modeling to estimate stellar masses, radii, and ages. Stellar radii are typically constrained to 11%, compared to 40% when only photometric constraints are used. Stellar masses are constrained to 4%, and ages are constrained to 30%. We verify the integrity of the stellar parameters through comparisons with asteroseismic studies and Gaia parallaxes. We also recompute planetary radii for 2025 planet candidates. Because knowledge of planetary radii is often limited by uncertainties in stellar size, we improve the uncertainties in planet radii from typically 42% to 12%. We also leverage improved knowledge of stellar effective temperature to recompute incident stellar fluxes for the planets, now precise to 21%, compared to a factor of two when derived from photometry.
关键词：planets and satellites: fundamental parameters;planets and satellites: general;stars: abundances;stars: fundamental parameters;techniques: spectroscopic Supporting material: machine-readable tables