Results 31 to 40 of about 3,808,369 (275)
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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The Orbital Evolution of Planet-Disk Solar Systems. [PDF]
, 2008 The extrasolar planets discovered to date possess larger eccentricities and smaller semi-major axes than similar planets in our solar system. It is not thought possible for these planets to form in situ; we propose they result from a combination of ...
Moorhead, Althea Valkyrie
core +7 more sources
RODEO: a new method for planet-disk interaction [PDF]
Astronomy & Astrophysics, 2006 In this paper we describe a new method for studying the hydrodynamical problem of a planet embedded in a gaseous disk. We use a finite volume method with an approximate Riemann solver (the Roe solver), together with a special way to integrate the source terms.
Paardekooper, S.-J., Mellema, G.
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Planet–disk interaction in VSI-active disks
, 2022 The vertical shear instability (VSI) is a popular mechanism that has been proposed to explain accretion in protoplanetary disks, and could be observable in the near future. With high-resolution numerical hydrodynamics simulations, we model the behavior of the VSI in protoplanetary disks and measure its accretion and mixing capabilities with and without
Ziampras, Alexandros +2 more
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Gap formation in a self-gravitating disk and the associated migration of the embedded giant planet [PDF]
, 2014 We present the results of our recent study on the interactions between a giant planet and a self-gravitating gas disk. We investigate how the disk's self-gravity affects the gap formation process and the migration of the giant planet.
Zhang, Hui +3 more
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The Astrophysical Journal, 2023 High-resolution observations of several debris disks reveal structures such as gaps and spirals, suggestive of gravitational perturbations induced by underlying planets.
Antranik A. Sefilian +2 more
doaj +1 more source
Kinematic signatures of planet-disk interactions in VSI-turbulent protoplanetary disks
Astronomy & Astrophysics, 2023 Context. Planets are thought to form inside weakly ionized regions of protoplanetary disks, where turbulence creates ideal conditions for solid growth. However, the nature of this turbulence is still uncertain. In this zone, vertical shear instability (VSI) can operate, inducing a low level of gas turbulence and large-scale motions. Resolving kinematic
Barraza-Alfaro, Marcelo +2 more
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Star-planet interactions [PDF]
, 2021 Context. Tidal interactions and planetary evaporation processes impact the evolution of close-in star–planet systems. Aims. We study the impact of stellar rotation on these processes. Methods.
Vincent Bourrier +17 more
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MODELING DUST EMISSION OF HL TAU DISK BASED ON PLANET–DISK INTERACTIONS [PDF]
The Astrophysical Journal, 2016 ABSTRACT We use extensive global two-dimensional hydrodynamic disk gas+dust simulations with embedded planets, coupled with three-dimensional radiative transfer calculations, to model the dust ring and gap structures in the HL Tau protoplanetary disk observed with the Atacama Large Millimeter/Submillimeter Array (ALMA).
Sheng Jin +4 more
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Star-planet interactions [PDF]
, 2018 When planets are formed from the protoplanetary disk and after the disk has dissipated, the evolution of their orbits is governed by tidal interactions, friction, and gravitational drag, and also by changes in the mass of the star and planet.
Lionel Haemmerlé +15 more
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