Results 1 to 10 of about 10,374 (277)

Shoulder of Dust Rings Formed by Planet–Disk Interactions [PDF]

The Astrophysical Journal
Recent analyses of millimeter-wavelength protoplanetary disk observations have revealed several emission excesses on the previously identified dust rings, referred to as dust shoulders.
Jiaqing Bi, Min-Kai Lin
doaj   +7 more sources

Planet-disk-wind interaction: The magnetized fate of protoplanets [PDF]

Astronomy and Astrophysics, 2023
Context. Models of a planet-disk interaction are mainly based on 2D and 3D viscous hydrodynamic simulations. In such models, accretion is classically prescribed by an αv parameter which characterizes the turbulent radial transport of angular momentum in the disk.
Gaylor Wafflard-Fernandez, Geoffroy Lesur   +1 more
exaly   +6 more sources

Excitation of Planetary Obliquities through Planet–Disk Interactions [PDF]

Astrophysical Journal, 2019
Abstract The tilt of a planet’s spin axis off its orbital axis (“obliquity”) is a basic physical characteristic that plays a central role in determining the planet’s global circulation and energy redistribution. Moreover, recent studies have also highlighted the importance of obliquities in sculpting not only the physical features of ...
Konstantin Batygin, Sarah Millholland
exaly   +6 more sources

The Disk Substructures at High Angular Resolution Project (DSHARP). VII. The Planet–Disk Interactions Interpretation [PDF]

Astrophysical Journal Letters, 2018
Abstract The Disk Substructures at High Angular Resolution Project (DSHARP) provides a large sample of protoplanetary disks with substructures that could be induced by young forming planets. To explore the properties of planets that may be responsible for these substructures, we systematically carry out a grid of 2D hydrodynamical ...
Xue-Ning Bai, Jane Huang, Andrea Isella   +2 more
exaly   +6 more sources

Mind the Kinematics Simulation of Planet–Disk Interactions: Time Evolution and Numerical Resolution [PDF]

The Astrophysical Journal
Planet–disk interactions can produce kinematic signatures in protoplanetary disks. While recent observations have detected non-Keplerian gas motions in disks, their origins are still being debated.
Kan Chen, Ruobing Dong
doaj   +7 more sources

Planet-Disk Interaction and Orbital Evolution [PDF]

Annual Review of Astronomy and Astrophysics, 2012
As planets form and grow within gaseous protoplanetary disks, the mutual gravitational interaction between the disk and planet leads to the exchange of angular momentum and migration of the planet. We review current understanding of disk-planet interactions, focusing in particular on physical processes that determine the speed and direction of ...
Kley, W., Nelson, R. P.
exaly   +4 more sources

Three-dimensional Global Simulations of Type-II Planet–Disk Interaction with a Magnetized Disk Wind. I. Magnetic Flux Concentration and Gap Properties

The Astrophysical Journal, 2023
Giant planets embedded in protoplanetary disks (PPDs) can create annulus density gaps around their orbits in the type-II regime, potentially responsible for the ubiquity of annular substructures observed in PPDs.
Yuhiko Aoyama, Xue-Ning Bai
doaj   +3 more sources

Dynamics of Colombo’s Top: Generating Exoplanet Obliquities from Planet–Disk Interactions [PDF]

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
exaly   +3 more sources

MODELING DUST EMISSION OF HL TAU DISK BASED ON PLANET–DISK INTERACTIONS [PDF]

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).
Andrea Isella, Shengtai Li, Sheng Jin
exaly   +3 more sources

Planet−Disk Interactions and the Convective Overstability. I. Low-mass Planets

The Astrophysical Journal
Rapid inward migration driven by Type I torques threatens the survival of low-mass planets in their nascent protoplanetary disks (PPDs). Positive corotation torques offer a potential solution but require viscous diffusion to remain unsaturated.
Marius Lehmann, Min-Kai Lin
doaj   +4 more sources