Results 1 to 10 of about 62,310 (153)

A Quantitative Comparison of Exoplanet Catalogs [PDF]

open access: yesGeosciences, 2018
In this study, we investigated the differences between four commonly-used exoplanet catalogs (exoplanet.eu; exoplanetarchive.ipac.caltech.edu; openexoplanetcatalogue.com; exoplanets.org) using a Kolmogorov–Smirnov (KS) test.
Ravit Helled, Dolev Bashi, Shay Zucker
exaly   +4 more sources

Scaling K2. V. Statistical Validation of 60 New Exoplanets From K2 Campaigns 2–18

open access: yesThe Astronomical Journal, 2022
The NASA K2 mission, salvaged from the hardware failures of the Kepler telescope, has continued Kepler’s planet-hunting success. It has revealed nearly 500 transiting planets around the ecliptic plane, many of which are the subject of further study, and ...
Jessie L. Christiansen   +41 more
doaj   +1 more source

The K2 and TESS Synergy. II. Revisiting 26 Systems in the TESS Primary Mission

open access: yesThe Astronomical Journal, 2023
The legacy of NASA’s K2 mission has provided hundreds of transiting exoplanets that can be revisited by new and future facilities for further characterization, with a particular focus on studying the atmospheres of these systems. However, the majority of
Erica Thygesen   +18 more
doaj   +1 more source

The Demographics of Terrestrial Planets in the Venus Zone

open access: yesThe Astronomical Journal, 2023
Understanding the physical characteristics of Venus, including its atmosphere, interior, and its evolutionary pathway with respect to Earth, remains a vital component for terrestrial planet evolution models and the emergence and/or decline of planetary ...
Colby Ostberg   +9 more
doaj   +1 more source

Multiplicity Boost of Transit Signal Classifiers: Validation of 69 New Exoplanets using the Multiplicity Boost of ExoMiner

open access: yesThe Astronomical Journal, 2023
Most existing exoplanets are discovered using validation techniques rather than being confirmed by complementary observations. These techniques generate a score that is typically the probability of the transit signal being an exoplanet ( y ( x ...
Hamed Valizadegan   +5 more
doaj   +1 more source

Identifying Exoplanets with Deep Learning. V. Improved Light-curve Classification for TESS Full-frame Image Observations

open access: yesThe Astronomical Journal, 2023
The TESS mission produces a large amount of time series data, only a small fraction of which contain detectable exoplanetary transit signals.
Evan Tey   +10 more
doaj   +1 more source

Understanding the Planetary Formation and Evolution in Star Clusters (UPiC). I. Evidence of Hot Giant Exoplanets Formation Timescales

open access: yesThe Astronomical Journal, 2023
Planets in young star clusters could shed light on planet formation and evolution since star clusters can provide accurate age estimation. However, the number of transiting planets detected in clusters was only ∼30, too small for statistical analysis ...
Yuan-Zhe Dai   +3 more
doaj   +1 more source

Scaling K2. VI. Reduced Small-planet Occurrence in High-galactic-amplitude Stars

open access: yesThe Astronomical Journal, 2023
In this study, we performed a homogeneous analysis of the planets around FGK dwarf stars observed by the Kepler and K2 missions, providing spectroscopic parameters for 310 K2 targets —including 239 Scaling K2 hosts—observed with Keck/HIRES.
Jon K. Zink   +15 more
doaj   +1 more source

Prospects from TESS and Gaia to Constrain the Flatness of Planetary Systems

open access: yesThe Astronomical Journal, 2023
The mutual inclination between planets orbiting the same star provides key information to understand the formation and evolution of multiplanet systems.
Juan I. Espinoza-Retamal   +2 more
doaj   +1 more source

The Kepler Giant Planet Search. I. A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

open access: yesThe Astrophysical Journal Supplement Series, 2023
Despite the importance of Jupiter and Saturn to Earth’s formation and habitability, there has not yet been a comprehensive observational study of how giant exoplanets correlate with the architectural properties of close-in, sub-Neptune-sized exoplanets ...
Lauren M. Weiss   +21 more
doaj   +1 more source

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