Results 11 to 20 of about 796 (212)
Evidence for Low-level Dynamical Excitation in Near-resonant Exoplanet Systems
The Astronomical Journal, 2023 The geometries of near-resonant planetary systems offer a relatively pristine window into the initial conditions of exoplanet systems. Given that near-resonant systems have likely experienced minimal dynamical disruptions, the spin–orbit orientations of ...
Malena Rice +20 more
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Workshop Summary: Exoplanet Orbits and Dynamics [PDF]
Publications of the Astronomical Society of the Pacific, 2023 Abstract Exoplanetary systems show a wide variety of architectures, which can be explained by different formation and dynamical evolution processes. Precise orbital monitoring is mandatory to accurately constrain their orbital and dynamical parameters.
A.-L. Maire +80 more
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DYNAMICS AND TRANSIT VARIATIONS OF RESONANT EXOPLANETS [PDF]
The Astrophysical Journal, 2016 ABSTRACT Transit timing variations (TTVs) are deviations of the measured midtransit times from the exact periodicity. One of the most interesting causes of TTVs is the gravitational interaction between planets. Here we consider a case of two planets in a mean motion resonance (orbital periods in a ratio of small integers).
David Nesvorný, David Vokrouhlický
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Tidal dynamics of transiting exoplanets [PDF]
Proceedings of the International Astronomical Union, 2010 AbstractTransits give us the mass, radius, and orbital properties of the planet, all of which inform dynamical theories. Two properties of the hot Jupiters suggest they had a dramatic origin via tidal damping from high eccentricity. First, the tidally circularized planets (in the 1-4 day pile-up) lie along a relation or boundary in the mass-period ...
Daniel C. Fabrycky
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The Diversity of Exoplanets: From Interior Dynamics to Surface Expressions [PDF]
Elements, 2021 The coupled interior–atmosphere system of terrestrial exoplanets remains poorly understood. Exoplanets show a wide variety of sizes, densities, surface temperatures, and interior structures, with important knock-on effects for this coupled system. Many exoplanets are predicted to have a “stagnant lid” at the surface, with a rigid stationary crust ...
Maxim Ballmer, Lena Noack
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Atmospheric Dynamics of Exoplanets [PDF]
Annual Review of Earth and Planetary Sciences, 2014 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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Dynamics of Colombo’s Top: Generating Exoplanet Obliquities from Planet–Disk Interactions [PDF]
The Astrophysical Journal, 2020 Abstract Large planetary spin–orbit misalignments (obliquities) may strongly influence atmospheric circulation and tidal heating in a planet. A promising avenue to generate obliquities is via spin–orbit resonances, where the spin and orbital precession frequencies of a planet cross each other as the system evolves in time.
Yubo Su, Dong Lai
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Interior dynamics of small-core and coreless exoplanets
, 2021 Since the first exoplanet detection in 1992, the study of exoplanets has received considerable attention. It is becoming apparent that the diversity of the general exoplanet population extends beyond that of the Solar System and includes a variety of structures and compositions.
Caroline Hasler, Paul Tackley
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Keplerian Orbits and Dynamics of Exoplanets [PDF]
, 2010 8 pages, 9 figures, Chapter in "Exoplanets"; ISBN 978-0-8165-2945 ...
C. D. Murray, A. C. M. Correia
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The composition and dynamics of exoplanet atmospheres. [PDF]
, 2016 The study of exoplanets has rapidly developed in the last twenty years, and the detailed characterization of planetary atmospheres has become a key area of research.\ud \ud For transiting planets around bright stars, atmospheric features can be detected with transmission spectroscopy.
Tom Louden
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