Kepler Transit Depths Contaminated by a Phantom Star [PDF]
, 2016 We present ground-based observations from the Discovery Channel Telescope (DCT) of three transits of Kepler-445c---a supposed super-Earth exoplanet with properties resembling GJ 1214b---and demonstrate that the transit depth is approximately 50 percent ...
Croll, Bryce +3 more
core +2 more sources
A novel hybrid algorithm of GSA with Kepler algorithm for numerical optimization
Journal of King Saud University: Computer and Information Sciences, 2015 It is now well recognized that pure algorithms can be promisingly improved by hybridization with other techniques. One of the relatively new metaheuristic algorithms is Gravitational Search Algorithm (GSA) which is based on the Newton laws. In this paper,
Soroor Sarafrazi +2 more
doaj +1 more source
A super-Earth-sized planet orbiting in or near the habitable zone around Sun-like star
, 2013 We present the discovery of a super-earth-sized planet in or near the habitable zone of a sun-like star. The host is Kepler-69, a 13.7 mag G4V-type star.
Barclay, Thomas +30 more
core +1 more source
El platonisme de Johannes Kepler
Enrahonar: Quaderns de Filosofia, 1995 L'article analitza el contingut de dues obres de Kepler, Mysterium Cosmographicum i Harmonice Mundi amb el propòsit d'esbrinar la qüestió del platonisme de Kepler, una qüestió que, d'acord amb el punt de vista d'aquest treball, necessita qualificació. És
J.V. Field
doaj +1 more source
The California-Kepler Survey. IV. Metal-rich Stars Host a Greater Diversity of Planets [PDF]
, 2017 Probing the connection between a star’s metallicity and the presence and properties of any associated planets offers an observational link between conditions during the epoch of planet formation and mature planetary systems. We explore this connection by
E. Petigura +9 more
semanticscholar +1 more source
Analytic orbit propagation for transiting circumbinary planets
, 2015 The herein presented analytical framework fully describes the motion of coplanar systems consisting of a stellar binary and a planet orbiting both stars on orbital as well as secular timescales.
Eggl, Siegfried, Georgakarakos, Nikolaos
core +2 more sources
An Investigation into Exoplanet Transits and Uncertainties [PDF]
, 2017 A simple transit model is described along with tests of this model against published results for 4 exoplanet systems (Kepler-1, 2, 8, and 77). Data from the Kepler mission are used.
Banks, Timothy +3 more
core +2 more sources
The California-Kepler Survey. V. Peas in a Pod: Planets in a Kepler Multi-planet System Are Similar in Size and Regularly Spaced [PDF]
, 2017 We have established precise planet radii, semimajor axes, incident stellar fluxes, and stellar masses for 909 planets in 355 multi-planet systems discovered by Kepler.
L. Weiss +12 more
semanticscholar +1 more source
Constraining the Densities of the Three Kepler-289 Planets with Transit Timing Variations
The Astronomical Journal, 2023 Kepler-289 is a three-planet system containing two sub-Neptunes and one cool giant planet orbiting a young, Sun-like star. All three planets exhibit transit timing variations (TTVs), with both adjacent planet pairs having orbital periods close to the 2:1
Michael Greklek-McKeon +6 more
doaj +1 more source
Lamost observations in the kepler field. I. Database of low-resolution spectra* [PDF]
, 2015 The nearly continuous light curves with micromagnitude precision provided by the space mission Kepler are revolutionizing our view of pulsating stars. They have revealed a vast sea of low-amplitude pulsation modes that were undetectable from Earth.
A. B. Ren +55 more
core +3 more sources