Results 111 to 120 of about 8,504 (191)

On the interaction between embedded planets and the corotation region of protoplanetary discs [PDF]

, 2015
PhDDisc material in the corotation region librates with respect to low-mass planets on horseshoe trajectories. The exchange of angular momentum associated with this libration gives rise to the non-linear corotation torque (the horseshoe drag).
Fendyke, Stephen
core  

Adapting to migration as a planetary force [PDF]

The Lancet, 2015
openaire   +2 more sources

Failed Oort Clouds and Planetary Migration

, 2000
TeX, 3 pages plus 3 postscript figures. submitted to Ap.
openaire   +2 more sources

Kuiper Belt formation via grainy planetary migration

Monthly Notices of the Royal Astronomical Society
ABSTRACT We used N-body simulations to model the 4.5 Gyr orbital evolution of the early Kuiper Belt, incorporating a massive protoplanetary disc, the four giant planets, and 1500 primordial Pluto-class bodies (‘Plutos’) that drove Neptune’s grainy migration.
Patryk Sofia Lykawka, Jonathan Horner, Pedro Bernardinelli   +2 more
openaire   +2 more sources

Turbulence destroys thermal lobes around Mars-sized planetary embryos

Astronomy & Astrophysics
Context. The release of heat by a planetary embryo modifies the local density perturbations, forming thermal lobes in its vicinity, and thereby altering the torque exerted by the disk on the embryo.
Chametla R. O., Moranchel-Basurto A., Sánchez-Salcedo F. J.   +2 more
doaj   +1 more source

Toward predictive scenarios of planetary migration

, 2008
La détection récente des exoplanètes a fourni un formidable laboratoire d'expérimentation des théories de formation et d'évolution planétaire. Un résultat troublant est la proportion de planètes géantes situées plus près de leur étoile que ne l'est Mercure de notre Soleil! Si, comme il est admis, ces planètes se sont formées à plus grande distance de l'
openaire   +2 more sources

TESS Hunt for Young and Maturing Exoplanets (THYME). XIV. A Comoving-based Age Constraint for KELT-20

The Astronomical Journal
Young stellar moving groups offer unique opportunities to investigate the early evolution of stellar and planetary systems. In continuation of an ongoing effort to age-date compelling planetary systems, we provide an in-depth age analysis of KELT-20—a ...
Adam Distler, Melinda Soares-Furtado, Andrew W. Mann, Adam L. Kraus, Jonathan Gagné, Juliette Becker, Ritvik Sai Narayan, Max Clark, Andrew Vanderburg, Joseph E. Rodriguez, Laura K. Rogers, Ronan Kerr   +11 more
doaj   +1 more source

Streaming Torque in Dust–Gas Coupled Protoplanetary Disks

The Astrophysical Journal
We investigate the migration of low-mass protoplanets embedded in dust–gas coupled protoplanetary disks. Linear calculations are performed with respect to the Nakagawa–Sekiya–Hayashi (NSH) equilibrium within a shearing sheet. We find that the dusty quasi-
Qiang Hou, Cong Yu
doaj   +1 more source

On the Migratory Behavior of Planetary Systems [PDF]

, 2013
For centuries, an orderly view of planetary system architectures dominated the discourse on planetary systems. However, there is growing evidence that many planetary systems underwent a period of upheaval, during which giant planets "migrated" from where
Dawson, Rebekah Ilene, Rebekah Ilene Dawson   +1 more
core  

Formulation of planetary migration

Formulation of planetary migration
Solar system has experienced planetary migration in its formation stage. Especially, Neptune has an evidence of outward migration in the 3:2 mean motion resonance in the Kuiper belt objects. In the point of view of planetary formation theory, outer ice giant planet needs planetary migration to shortening its growth time.
openaire