Results 11 to 20 of about 877,284 (297)
Science, 1998 A planet orbiting in a disk of planetesimals can experience an instability in which it migrates to smaller orbital radii. Resonant interactions between the planet and planetesimals remove angular momentum from the planetesimals, increasing their ...
Hansen, Brad +3 more
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Planet--planet scattering in circumstellar gas disks [PDF]
Astronomy and Astrophysics, 2010 Hydrodynamical simulations of two giant planets embedded in a gaseous disk have shown that in case of a smooth convergent migration they end up trapped into a mean motion resonance.
Baruteau, C., Marzari, F., Scholl, H.
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Tilting Planets during Planet Scattering [PDF]
The Astrophysical Journal Letters, 2021 Abstract Observational constraints on planetary spin axis have recently become possible, and they have revealed a system that favors large spin-axis misalignment, low stellar spin–orbit misalignment, and high eccentricity. To explain the origin of such systems, we propose a mechanism that could tilt the planetary spin axis during planet ...
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Stellar Flybys Interrupting Planet–Planet Scattering Generates Oort Planets [PDF]
The Astronomical Journal, 2019 Abstract Wide-orbit exoplanets are starting to be detected, and planetary formation models are under development to understand their properties. We propose a population of “Oort” planets around other stars, forming by means of a mechanism analogous to how the solar system’s Oort cloud of comets was populated.
Nora Bailey, Daniel Fabrycky
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Spin Dynamics of Extrasolar Giant Planets in Planet–Planet Scattering [PDF]
The Astrophysical Journal, 2021 Abstract Planet–planet scattering best explains the eccentricity distribution of extrasolar giant planets, and past literature showed that the orbits of planets evolve due to planet–planet scattering. This work studies the spin evolution of planets in planet–planet scattering in two-planet systems.
Yu-Cian Hong +3 more
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Proceedings of the National Academy of Sciences, 2000 The first known extrasolar planet in orbit around a Sun-like star was discovered in 1995. This object, as well as over two dozen subsequently detected extrasolar planets, were all identified by observing periodic variations of the Doppler shift of light emitted by the stars to which they are bound.
J J, Lissauer, G W, Marcy, S, Ida
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Atmosphere loss in planet–planet collisions [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Many of the planets discovered by the Kepler satellite are close orbiting super-Earths or mini-Neptunes. Such objects exhibit a wide spread of densities for similar masses. One possible explanation for this density spread is giant collisions stripping planets of their atmospheres.
Thomas R Denman +3 more
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Open Astronomy, 2021 Kaba meteorite as a reference material (one of a least metamorphosed and most primitive carbonaceous chondrites fell on Earth) was chosen for this study providing an adequate background for study of the protoplanetary disk or even the crystallization ...
Futó Péter +9 more
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Remote Sensing, 2021 Seagrass meadows are globally important habitats, protecting shorelines, providing nursery areas for fish, and sequestering carbon. However, both anthropogenic and natural environmental stressors have led to a worldwide reduction seagrass habitats.
Johannes R. Krause +3 more
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Etnoantropološki Problemi, 2022 The paper comparatively explores the projects of Gaia and the planet as the new images of the Earth, proposed by Bruno Latour and Dipesh Chakrabarty respectively.
Stefan Janković
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