Results 41 to 50 of about 22,266,209 (231)

'exoplanet': Gradient-based probabilistic inference for exoplanet data & other astronomical time series [PDF]

open access: yesJournal of Open Source Software, 2021
"exoplanet"is a toolkit for probabilistic modeling of astronomical time series data, with a focus on observations of exoplanets, using PyMC3 (Salvatier et al., 2016).
D. Foreman-Mackey   +15 more
semanticscholar   +1 more source

Large Interferometer For Exoplanets (LIFE). II. Signal simulation, signal extraction, and fundamental exoplanet parameters from single-epoch observations [PDF]

open access: yesAstronomy & Astrophysics, 2022
The Large Interferometer For Exoplanets (LIFE) initiative is developing the science and a technology roadmap for an ambitious space mission featuring a space-based mid-infrared (MIR) nulling interferometer in order to detect the thermal emission of ...
F. Dannert   +15 more
semanticscholar   +1 more source

Validating AU Microscopii d with Transit Timing Variations

open access: yesThe Astronomical Journal, 2023
AU Mic is a young (22 Myr), nearby exoplanetary system that exhibits excess transit timing variations (TTVs) that cannot be accounted for by the two known transiting planets nor stellar activity.
Justin M. Wittrock   +33 more
doaj   +1 more source

Exoplanet Statistics and Theoretical Implications [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2021
In the past few years, significant advances have been made in understanding the distributions of exoplanet populations and the architecture of planetary systems.
Wei Zhu, S. Dong
semanticscholar   +1 more source

“In-System” Fission-Events: An Insight into Puzzles of Exoplanets and Stars? [PDF]

open access: yesUniverse, 2021
In expansion of our recent proposal that the solar system’s evolution occurred in two stages—during the first stage, the gaseous giants formed (via disk instability), and, during the second stage (caused by an encounter with a particular stellar-object leading to “in-system” fission-driven nucleogenesis), the terrestrial planets formed (via accretion ...
Elizabeth P. Tito, Vadim I. Pavlov
openaire   +4 more sources

DYNAMIC EVOLUTION EXOPLANET SYSTEMS, MOVING IN ORBITAL RESONANCES WITH THE ACCOUNT OF SECULAR PERTURBATION FROM N BODIES

open access: yesOdessa Astronomical Publications, 2017
Equations of exoplanet's motion connected with orbital Lindblad resonances with the account of secular terms caused by gravitational non-resonant perturbation are derived. Qualitative researches of orbital evolution modeling exoplanet systems are carried
B. R. Mushailov, A. K. Chuyas
doaj   +1 more source

Planet–Planet Occultations in TRAPPIST-1 and Other Exoplanet Systems [PDF]

open access: yes, 2017
We explore the occurrence and detectability of planet–planet occultations (PPOs) in exoplanet systems. These are events during which a planet occults the disk of another planet in the same system, imparting a small photometric signal as its thermal or ...
R. Luger, J. Lustig-Yaeger, E. Agol
semanticscholar   +1 more source

VaTEST. II. Statistical Validation of 11 TESS-detected Exoplanets Orbiting K-type Stars

open access: yesThe Astronomical Journal, 2023
NASA’s Transiting Exoplanet Survey Satellite (TESS) is an all-sky survey mission designed to find transiting exoplanets orbiting nearby bright stars. It has identified more than 329 transiting exoplanets, and almost 6000 candidates remain unvalidated. In
Priyashkumar Mistry   +50 more
doaj   +1 more source

TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets around M-dwarf Stars and Revised Parameters for Three Others

open access: yesThe Astronomical Journal, 2023
We present the discovery from the TESS mission of two giant planets transiting M-dwarf stars: TOI 4201 b and TOI 5344 b. We also provide precise radial velocity measurements and updated system parameters for three other M dwarfs with transiting giant ...
J. D. Hartman   +64 more
doaj   +1 more source

The Exoplanet Population Observation Simulator. I. The Inner Edges of Planetary Systems [PDF]

open access: yesAstronomical Journal, 2018
The Kepler survey provides a statistical census of planetary systems out to the habitable zone. Because most planets are non-transiting, orbital architectures are best estimated using simulated observations of ensemble populations.
G. Mulders   +3 more
semanticscholar   +1 more source

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