Results 111 to 120 of about 90,567 (226)

Disk-planets interactions and the diversity of period ratios in Kepler's multi-planetary systems

open access: yes, 2013
The Kepler mission is dramatically increasing the number of planets known in multi-planetary systems. Many adjacent planets have orbital period ratios near resonant values, with a tendency to be larger than required for exact first-order mean-motion ...
Baruteau, Clement   +1 more
core   +3 more sources

Formation of planetary systems by pebble accretion and migration: Hot\n super-Earth systems from breaking compact resonant chains [PDF]

open access: green, 2019
André Izidoro   +6 more
openalex   +1 more source

Toward predictive scenarios of planetary migration

open access: yes, 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

Streaming Torque in Dust–Gas Coupled Protoplanetary Disks

open access: yesThe 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

The PFS View of TOI-677 b: A Spin–Orbit Aligned Warm Jupiter in a Dynamically Hot System

open access: yesThe Astronomical Journal
TOI-677 b is part of an emerging class of “tidally detached” gas giants ( a / R _⋆ ≳ 11) that exhibit large orbital eccentricities and yet low stellar obliquities. Such sources pose a challenge for models of giant planet formation, which must account for
Qingru Hu   +11 more
doaj   +1 more source

The effects of a magnetic field on planetary migration in laminar and turbulent discs [PDF]

open access: bronze, 2016
M. L. Comins   +5 more
openalex   +1 more source

Planet–Planet Scattering and Von Zeipel–Lidov–Kozai Migration—The Dynamical History of HAT-P-11

open access: yesThe Astrophysical Journal
The two planets of the HAT-P-11 system represent fascinating dynamical puzzles due to their significant eccentricities and orbital misalignments. In particular, HAT-P-11 b is in a close-in orbit in which tides should have circularized well within the age
Tiger Lu   +6 more
doaj   +1 more source

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