Results 11 to 20 of about 881,089 (353)
Spin Dynamics of Extrasolar Giant Planets in Planet-Planet Scattering [PDF]
The Astrophysical Journal, 2021 Planet-planet scattering best explains the eccentricity distribution of extrasolar giant planets. 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 2-planet systems. Spin can evolve dramatically due to spin-orbit coupling made possible
Yu-Cian Hong +3 more
arxiv +5 more sources
Origins of Eccentric Extrasolar Planets: Testing the Planet-Planet Scattering Model [PDF]
Astrophys.J.686:621-636,2008, 2007 (Abridged) In planetary systems with two or more giant planets, dynamical instabilities can lead to collisions or ejections through strong planet--planet scattering. Previous studies for simple initial configurations with two equal-mass planets revealed some discrepancies between the results of numerical simulations and the observed orbital elements of
Eric B. Ford +2 more
arxiv +5 more sources
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.
core +7 more sources
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
openaire +4 more sources
Scientific American, 2006 A planet is an end product of disk accretion around a primary star or substar. I quantify this definition by the degree to which a body dominates the other masses that share its orbital zone. Theoretical and observational measures of dynamical dominance reveal a gap of four to five orders of magnitude separating the eight planets of our solar system ...
Steven Soter, Steven Soter
openaire +5 more sources
A new family of planets? “Ocean-Planets” [PDF]
Icarus, 2004 A new family of planets is considered which is between rochy terrestrial planets and gaseous giant ones: "Ocean-Planets". We present the possible formation, composition and internal models of these putative planets, including that of their ocean, as well as their possible Exobiology interest.
Leger, A. +11 more
openaire +5 more sources
Dynamical Outcomes of Planet‐Planet Scattering [PDF]
The Astrophysical Journal, 2008 Observations in the past decade have revealed extrasolar planets with a wide range of orbital semimajor axes and eccentricities. Based on the present understanding of planet formation via core accretion and oligarchic growth, we expect that giant planets often form in closely packed configurations.
Sourav Chatterjee +4 more
openaire +4 more sources
, 2007 We review the interior structure and evolution of Jupiter, Saturn, Uranus and Neptune, and giant exoplanets with particular emphasis on constraining their global composition. Compared to the first edition of this review, we provide a new discussion of the atmospheric compositions of the solar system giant planets, we discuss the discovery of ...
Guillot, Tristan, Gautier, Daniel
openaire +10 more sources
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 ...
openaire +4 more sources
Applicability study of four atmospheric correction methods in the remote sensing of lake water color
Geocarto International, 2023 Due to the complexity of spectral characteristics for inland lake water, high-precision atmospheric correction methods play an essential role in remote sensing.
Aimin Li, Xiangyu Yan, Xuan Kang
doaj +1 more source