Let the Great World Spin: Revealing the Stormy, Turbulent Nature of Young Giant Exoplanet Analogs with the Spitzer Space Telescope [PDF]
Astrophysical Journal, 2022 We present a survey for photometric variability in young, low-mass brown dwarfs with the Spitzer Space Telescope. The 23 objects in our sample show robust signatures of youth and share properties with directly imaged exoplanets.
J. Vos +7 more
semanticscholar +1 more source
Plausible Constraints on the Range of Bulk Terrestrial Exoplanet Compositions in the Solar Neighborhood [PDF]
Astrophysical Journal, 2022 Rocky planet compositions regulate planetary evolution by affecting core sizes, mantle properties, and melting behaviors. Yet, quantitative treatments of this aspect of exoplanet studies remain generally underexplored.
R. Spaargaren +4 more
semanticscholar +1 more source
TESS Hunt for Young and Maturing Exoplanets (THYME). VII. Membership, Rotation, and Lithium in the Young Cluster Group-X and a New Young Exoplanet [PDF]
Astronomical Journal, 2022 The public, all-sky surveys Gaia and TESS provide the ability to identify new young associations and determine their ages. These associations enable study of planetary evolution by providing new opportunities to discover young exoplanets.
E. Newton +38 more
semanticscholar +1 more source
Evolution of Planetary Obliquity: The Eccentric Kozai–Lidov Mechanism Coupled with Tide
The Astrophysical Journal, 2023 Planetary obliquity plays a significant role in determining the physical properties of planetary surfaces and climate. As direct detection is constrained due to the present observation accuracy, kinetic theories are helpful for predicting the evolution ...
Xiumin Huang +4 more
doaj +1 more source
GPI PSF subtraction with TLOCI: the next evolution in exoplanet/disk high-contrast imaging [PDF]
Astronomical Telescopes and Instrumentation, 2014 To directly image exoplanets and faint circumstellar disks, the noisy stellar halo must be suppressed to a high level. To achieve this feat, the angular differential imaging observing technique and the least-squares Locally Optimized Combination of ...
Christian Marois +6 more
openalex +3 more sources
Analysis of the orbital evolution of exoplanets [PDF]
Computational and Applied Mathematics, 2015 An exoplanet, or extrasolar planet, is a planet that does not orbit the Sun, but is around a different star, stellar remnant, or brown dwarf. Up to now, about 1900 exoplanets were discovered. To better understand the dynamics of these exoplanets, a study with respect to possible collisions of the planet with the central star is shown here.
Carvalho, J. P.S. +4 more
openaire +3 more sources
Volcanic Exoplanet Surfaces [PDF]
Monthly notices of the Royal Astronomical Society, 2022 Recent measurements of the reflection of the surface of a lava world provides an unprecedented opportunity to investigate different stages of rocky planet evolution.
M. Fortin +3 more
semanticscholar +1 more source
Surrounded by Giants: Habitable Zone Stability Within the HD 141399 System
The Astronomical Journal, 2023 The search for exoplanets has revealed a diversity of planetary system architectures, the vast majority of which diverge significantly from the template of the solar system.
Stephen R. Kane
doaj +1 more source
Evidence of Long-term Period Variations in the Exoplanet Transit Database (ETD) [PDF]
Astronomical Journal, 2022 We analyze a large number of citizen science data and identify eight hot Jupiter systems that show evidence for deviations from a constant orbital period: HAT-P-19 b, HAT-P-32 b, TrES-1 b, TrES-2 b, TrES-5 b, WASP-4 b, WASP-10 b, and WASP-12 b.
Simone R. Hagey, B. Edwards, A. Boley
semanticscholar +1 more source
Thermal and Orbital Evolution of Low-mass Exoplanets [PDF]
The Astrophysical Journal, 2020 Abstract The thermal, orbital, and rotational dynamics of tidally loaded exoplanets are interconnected by intricate feedback. The rheological structure of the planet determines its susceptibility to tidal deformation and, as a consequence, participates in shaping its orbit.
Michaela Walterová, Marie Běhounková
openaire +4 more sources