Results 11 to 20 of about 123,325 (182)

The McDonald Accelerating Stars Survey: Architecture of the Ancient Five-planet Host System Kepler-444

open access: yesThe 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

Experiencia estética y formulación científica: el caso del Harmonices Mundi de Johannes Kepler

open access: yesAnuario 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

Transit Timing Observations from Kepler: III. Confirmation of 4 Multiple Planet Systems by a Fourier-Domain Study of Anti-correlated Transit Timing Variations [PDF]

open access: yes, 2012
We present a method to confirm the planetary nature of objects in systems with multiple transiting exoplanet candidates. This method involves a Fourier-Domain analysis of the deviations in the transit times from a constant period that result from ...
Agol   +79 more
core   +7 more sources

The Kepler-10 planetary system revisited by HARPS-N: A hot rocky world and a solid Neptune-mass planet [PDF]

open access: yes, 1998
Kepler-10b was the first rocky planet detected by the Kepler satellite and con- firmed with radial velocity follow-up observations from Keck-HIRES. The mass of the planet was measured with a precision of around 30%, which was insufficient to constrain ...
Xavier Dumusque   +72 more
core   +4 more sources

Radial Velocity Observations and Light Curve Noise Modeling Confirm That Kepler-91b is a Giant Planet Orbiting a Giant Star [PDF]

open access: yes, 2015
Kepler-91b is a rare example of a transiting hot Jupiter around a red giant star, providing the possibility to study the formation and composition of hot Jupiters under different conditions compared to main-sequence stars.
Barclay, Thomas   +7 more
core   +2 more sources

Long-Period Giant Companions to Three Compact, Multiplanet Systems [PDF]

open access: yes, 2019
Understanding the relationship between long-period giant planets and multiple smaller short-period planets is critical for formulating a complete picture of planet formation. This work characterizes three such systems. We present Kepler-65, a system with
Boisvert, John H.   +9 more
core   +3 more sources

Elementary Solution of Kepler Problem (and a few other problems)

open access: yesRevista Brasileira de Ensino de Física, 2022
We present a simple method to obtain the solution of a few orbital problems: the Kepler problem, the modified Kepler problem by the addition of an inverse square potential and linear force.
M. Moriconi
doaj   +1 more source

KEPLER: A Unified Model for Knowledge Embedding and Pre-trained Language Representation

open access: yesTransactions of the Association for Computational Linguistics, 2021
Pre-trained language representation models (PLMs) cannot well capture factual knowledge from text. In contrast, knowledge embedding (KE) methods can effectively represent the relational facts in knowledge graphs (KGs) with informative entity embeddings ...
Xiaozhi Wang   +6 more
doaj   +1 more source

Kepler-93b: A Terrestrial World Measured to within 120 km, and a Test Case for a New Spitzer Observing Mode [PDF]

open access: yes, 2014
We present the characterization of the Kepler-93 exoplanetary system, based on three years of photometry gathered by the Kepler spacecraft. The duration and cadence of the Kepler observations, in tandem with the brightness of the star, enable unusually ...
Aguirre, Victor Silva   +24 more
core   +7 more sources

Planetary Candidates Observed by Kepler IV: Planet Sample From Q1-Q8 (22 Months) [PDF]

open access: yes, 2013
We provide updates to the Kepler planet candidate sample based upon nearly two years of high-precision photometry (i.e., Q1-Q8). From an initial list of nearly 13,400 Threshold Crossing Events (TCEs), 480 new host stars are identified from their flux ...
Barclay, Thomas   +39 more
core   +3 more sources

Home - About - Disclaimer - Privacy