The California-Kepler Survey. III. A Gap in the Radius Distribution of Small Planets [PDF]
, 2017 The size of a planet is an observable property directly connected to the physics of its formation and evolution. We used precise radius measurements from the California-Kepler Survey to study the size distribution of 2025 Kepler planets in fine detail ...
B. Fulton +12 more
semanticscholar +1 more source
Kepler-102: Masses and Compositions for a Super-Earth and Sub-Neptune Orbiting an Active Star
The Astronomical Journal, 2023 Radial velocity (RV) measurements of transiting multiplanet systems allow us to understand the densities and compositions of planets unlike those in the solar system. Kepler-102, which consists of five tightly packed transiting planets, is a particularly
Casey L. Brinkman +26 more
doaj +1 more source
The Evaporation Valley in the Kepler Planets [PDF]
, 2017 A new piece of evidence supporting the photoevaporation-driven evolution model for low-mass, close-in exoplanets was recently presented by the California–Kepler Survey. The radius distribution of the Kepler planets is shown to be bimodal, with a “valley”
J. Owen, Yanqin Wu
semanticscholar +1 more source
A 38 Million Year Old Neptune-sized Planet in the Kepler Field
The Astronomical Journal, 2022 Kepler 1627A is a G8V star previously known to host a 3.8 R _⊕ planet on a 7.2 day orbit. The star was observed by the Kepler space telescope because it is nearby ( d = 329 pc) and it resembles the Sun.
L. G. Bouma +14 more
doaj +1 more source
Revised Radii of Kepler Stars and Planets Using Gaia Data Release 2 [PDF]
Astrophysical Journal, 2018 One bottleneck for the exploitation of data from the Kepler mission for stellar astrophysics and exoplanet research has been the lack of precise radii and evolutionary states for most of the observed stars. We report revised radii of 177,911 Kepler stars
T. Berger +3 more
semanticscholar +1 more source
Occurrence Rates of Planets Orbiting FGK Stars: Combining Kepler DR25, Gaia DR2, and Bayesian Inference [PDF]
Astronomical Journal, 2019 We characterize the occurrence rate of planets, ranging in size from 0.5 to 16 R⊕, orbiting FGK stars with orbital periods from 0.5 to 500 days. Our analysis is based on results from the “DR25” catalog of planet candidates produced by NASA’s Kepler ...
D. Hsu, E. Ford, D. Ragozzine, K. Ashby
semanticscholar +1 more source
The Astronomical Journal, 2023 We present the latest and most precise characterization of the architecture for the ancient (≈11 Gyr) Kepler-444 system, which is composed of a K0 primary star (Kepler-444 A) hosting five transiting planets and a tight M-type spectroscopic binary (Kepler-
Zhoujian Zhang +13 more
doaj +1 more source
Planetary Candidates Observed by Kepler. VIII. A Fully Automated Catalog with Measured Completeness and Reliability Based on Data Release 25 [PDF]
Astrophysical Journal Supplement Series, 2017 We present the Kepler Object of Interest (KOI) catalog of transiting exoplanets based on searching 4 yr of Kepler time series photometry (Data Release 25, Q1–Q17). The catalog contains 8054 KOIs, of which 4034 are planet candidates with periods between 0.
S. Thompson +60 more
semanticscholar +1 more source
Experiencia estética y formulación científica: el caso del Harmonices Mundi de Johannes Kepler
Anuario Musical, 2013 La música como modelo explicativo del universo ha estado presente desde el mismo nacimiento de la reflexión filosófica. En el caso de Kepler, la música y la astronomía quedaban homologadas sobre la base de un único arquetipo geométrico, y por ello podían
Carlos Calderón Urreiztieta
doaj +1 more source
Kepler-20: A Sun-like Star with Three Sub-Neptune Exoplanets and Two Earth-size Candidates [PDF]
, 2011 We present the discovery of the Kepler-20 planetary system, which we initially identified through the detection of five distinct periodic transit signals in the Kepler light curve of the host star 2MASSJ19104752+4220194.
+44 more
core +4 more sources