The California-Kepler Survey. VII. Precise Planet Radii Leveraging Gaia DR2 Reveal the Stellar Mass Dependence of the Planet Radius Gap [PDF]
Astronomical Journal, 2018 The distribution of planet sizes encodes details of planet formation and evolution. We present the most precise planet size distribution to date based on Gaia parallaxes, Kepler photometry, and spectroscopic temperatures from the California-Kepler Survey.
Benjamin J. Fulton +3 more
openalex +3 more sources
Do Kepler Superflare Stars Really Include Slowly Rotating Sun-like Stars?—Results Using APO 3.5 m Telescope Spectroscopic Observations and Gaia-DR2 Data [PDF]
Astrophysical Journal, 2019 We report the latest view of Kepler solar-type (G-type main-sequence) superflare stars, including recent updates with Apache Point Observatory (APO) 3.5 m telescope spectroscopic observations and Gaia-DR2 data.
Yuta Notsu +9 more
openalex +3 more sources
The Possible Tidal Demise of Kepler’s First Planetary System [PDF]
Astrophysical Journal Letters, 2022 We present evidence of tidally-driven inspiral in the Kepler-1658 (KOI-4) system, which consists of a giant planet (1.1R J, 5.9M J) orbiting an evolved host star (2.9R ⊙, 1.5M ⊙).
S. Vissapragada +8 more
semanticscholar +1 more source
The Gaia–Kepler Stellar Properties Catalog. I. Homogeneous Fundamental Properties for 186,301 Kepler Stars [PDF]
Astronomical Journal, 2020 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 ...
T. Berger +5 more
semanticscholar +1 more source
Kepler Data Validation II–Transit Model Fitting and Multiple-planet Search [PDF]
Publications of the Astronomical Society of the Pacific, 2019 This paper discusses the transit model-fitting and multiple-planet search algorithms and performance of the Kepler Science Data Processing Pipeline, developed by the Kepler Science Operations Center (SOC).
Jie Li +15 more
openalex +2 more sources
The Gaia–Kepler Stellar Properties Catalog. II. Planet Radius Demographics as a Function of Stellar Mass and Age [PDF]
Astronomical Journal, 2020 Studies of exoplanet demographics require large samples and precise constraints on exoplanet host stars. Using the homogeneous Kepler stellar properties derived using the Gaia Data Release 2 by Berger et al., we recompute Kepler planet radii and incident
T. Berger +4 more
semanticscholar +1 more source
Planets Across Space and Time (PAST). II. Catalog and Analyses of the LAMOST–Gaia–Kepler Stellar Kinematic Properties [PDF]
Astronomical Journal, 2021 The Kepler telescope has discovered over 4000 planets (candidates) by searching ∼200,000 stars over a wide range of distance (order of kpc) in our Galaxy.
Di-Chang Chen +12 more
semanticscholar +1 more source
Evidence for a Nondichotomous Solution to the Kepler Dichotomy: Mutual Inclinations of Kepler Planetary Systems from Transit Duration Variations [PDF]
Astronomical Journal, 2021 Early analyses of exoplanet statistics from the Kepler mission revealed that a model population of multiplanet systems with low mutual inclinations (∼1°–2°) adequately describes the multiple-transiting systems but underpredicts the number of single ...
Sarah C. Millholland +5 more
semanticscholar +1 more source
Long-period Jovian Tilts the Orbits of Two sub-Neptunes Relative to Stellar Spin Axis in Kepler-129 [PDF]
Astronomical Journal, 2021 We present the discovery of Kepler-129 d ( Pd=7.2−0.3+0.4 yr, msinid=8.3−0.7+1.1MJup , ed=0.15−0.05+0.07 ) based on six years of radial-velocity observations from Keck/HIRES.
Jingwen 婧雯 Zhang 张 +12 more
semanticscholar +1 more source
Revista Española de Comunicación en Salud, 2020 Noticias falsas, afirmaciones engañosas, bulos, medias verdades, mentiras… Para vencer al virus de la desconfianza, alimentado por las falsas noticias de salud que circulan por internet -y más en tiempos de coronavirus-, la receta es acudir a los ...
Carlos Cachán-Alcolea +2 more
doaj +1 more source