Results 21 to 30 of about 2,964,883 (268)
Atmospheric Dynamics of Hot Exoplanets [PDF]
Annual Review of Earth and Planetary Sciences, 2015 The characterization of exoplanetary atmospheres has come of age in the past decade, as astronomical techniques now allow for albedos, chemical abundances, temperature profiles and maps, rotation periods, and even wind speeds to be measured. Atmospheric dynamics sets the background state of density, temperature, and velocity that determines or ...
Kevin Heng, Adam P. Showman
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Impact of Lorentz Violation Models on Exoplanets’ Dynamics
Universe, 2022 Many exoplanets have been detected by the radial velocity method, according to which the motion of a binary system around its center of mass can produce a periodical variation of the Doppler effect of the light emitted by the host star. These variations are influenced by both Newtonian and non-Newtonian perturbations to the dominant inverse-square ...
Antonio Gallerati +2 more
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Proceedings of the National Academy of Sciences of the United States of America, 2023 Significance Using a fully coupled, three-dimensional atmospheric chemistry-radiation-dynamics model, we demonstrate that the atmospheric composition of terrestrial exoplanets can be self-oscillatory under nonvarying external forcings. This finding could
Yangcheng Luo +4 more
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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
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Exoplanet atmospheres at high resolution through a modest-size telescope. Fe II in MASCARA-2b and KELT-9b with FIES on the Nordic Optical Telescope [PDF]
Astronomy & Astrophysics, 2022 Ground-based, high-resolution spectrographs are providing us with an unprecedented view of the dynamics and chemistry of the atmospheres of planets outside the Solar System.
A. Bello-Arufe +6 more
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High-contrast, high-angular resolution view of the GJ 367 exoplanet system [PDF]
Monthly notices of the Royal Astronomical Society, 2022 We search for additional companions in the GJ 367 exoplanet system, and aim at better constraining its age and evolutionary status. We analyse high contrast direct imaging observations obtained with HST/NICMOS, VLT/NACO, and VLT/SPHERE.
W. Brandner +3 more
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Dynamical Constraints on Exoplanets [PDF]
Proceedings of the International Astronomical Union, 2013 AbstractDynamical studies of new exoplanet systems are a critical component of the discovery and characterisation process. Such studies can provide firmer constraints on the parameters of the newly discovered planets, and may even reveal that the proposed planets do not stand up to dynamical scrutiny.
Horner, Jonti +4 more
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DYNAMICAL MEASUREMENTS OF THE INTERIOR STRUCTURE OF EXOPLANETS [PDF]
The Astrophysical Journal, 2013 Giant gaseous planets often reside on orbits in sufficient proximity to their host stars for the planetary quadrupole gravitational field to become non-negligible. In presence of an additional planetary companion, a precise characterization of the system's orbital state can yield meaningful constraints on the transiting planet's interior structure ...
Becker, Juliette C., Batygin, Konstantin
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The Sensitivity of Eclipse Mapping to Planetary Rotation
The Astronomical Journal, 2022 Mapping exoplanets across phases and during secondary eclipse is a powerful technique for characterizing Hot Jupiters in emission. Since these planets are expected to rotate about axes normal to their orbital planes, with rotation periods synchronized ...
Arthur D. Adams, Emily Rauscher
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Formation and dynamics of the resonant chain in the trappist-1 exoplanet system
, 2018 Jingyi Mah
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