Results 41 to 50 of about 90,567 (226)

Planetary migration

, 2008
Gravitational torques between a planet and gas in the protoplanetary disk result in orbital migration of the planet, and are likely to play an important role in the formation and early evolution of planetary systems. For masses comparable to those of observed giant extrasolar planets, the interaction with the disk is strong enough to form a gap ...
Armitage, Philip J., Rice, W. K. M.
openaire   +2 more sources

Evolution of planetesimal discs and planetary migration [PDF]

Monthly Notices of the Royal Astronomical Society, 2003
In this paper, we further develop the model for the migration of planets introduced in Del Popolo, Gambera and Ercan, and extended to time-dependent planetesimal accretion disks in Del Popolo and Eksi. More precisely, the assumption of Del Popolo and Eksi that the surface density in planetesimals is proportional to that of gas is released.
Del Popolo, A, Yesilyurt, S, Ercan, EN
openaire   +5 more sources

Stability and Formation of the Resonant System HD 73526 [PDF]

, 2007
Based on radial velocity measurements it has been found recently that the two giant planets detected around the star HD 73526 are in 2:1 resonance. However, as our numerical integration shows, the derived orbital data for this system result in chaotic ...
Beaugé, Bois, Calvet, Crida, D'Alessio, de Val-Borro, Ford, Hayashi, Kley, Kley, Kley, Kley, Lee, Lee, Masset, Michtchenko, P. Klagyivik, Perryman, Pollack, Psychoyos, Rivera, Sándor, Sándor, Tinney, Vogt, W. Kley, Zs. Sándor   +26 more
core   +2 more sources

Halting Planetary Migration

, 1999
7 pages, ApJL, revised ...
Lecar, M., Sasselov, D. D.
openaire   +2 more sources

Global models of planetary system formation in radiatively-inefficient protoplanetary discs

, 2011
(Abridged) We present the results of N-body simulations of planetary systems formation in radiatively-inefficient disc models, where positive corotation torques may counter the rapid inward migration of low mass planets driven by Lindblad torques.
Adachi, Batalha, Bell, Bell, Bitsch, Bonfils, Bryden, Butler, Chambers, Clarke, Cresswell, Daisaka, D’Angelo, Fischer, Fogg, Fogg, Goldreich, Hayashi, Ida, Ida, Inaba, Ivanov, Kalas, Kley, Lagrange, Lin, Lissauer, Lissauer, Lyra, Léger, Marois, Masset, Masset, Mayor, McNeil, McNeil, McNeil, Miguel, Mordasini, Mordasini, Movshovitz, Nelson, Paardekooper, Paardekooper, Paardekooper, Papaloizou, Papaloizou, Phil Hellary, Pollack, Richard P. Nelson, Sicilia-Aguilar, Syer, Terquem, Thommes, Ward, Ward   +55 more
core   +1 more source

Orbital Migration Models under Test

, 2010
Planet-disk interaction predicts a change in the orbital elements of an embedded planet. Through linear and fully hydrodynamical studies it has been found that migration is typically directed inwards.
Kley, Willy
core   +1 more source

Hamiltonian model of capture into mean motion resonance [PDF]

, 2010
Mean motion resonances are a common feature of both our own Solar System and of extrasolar planetary systems. Bodies can be trapped in resonance when their orbital semi-major axes change, for instance when they migrate through a protoplanetary disc.
Alexander J. Mustill, Chambers, Mark C. Wyatt, Reche   +3 more
core   +1 more source

Numerical simulations of type III planetary migration – II. Inward migration of massive planets [PDF]

Monthly Notices of the Royal Astronomical Society, 2008
We present a numerical study of rapid, so called type III migration for Jupiter-sized planets embedded in a protoplanetary disc. We limit ourselves to the case of outward migration, and study in detail its evolution and physics, concentrating on the structure of the co-rotation and circumplanetary regions, and processes for stopping migration.
Peplinski, A., Artymowicz, P., Mellema, G.   +2 more
openaire   +4 more sources

Concurrent Accretion and Migration of Giant Planets in their Natal Disks with Consistent Accretion Torque. II. Parameter Survey and Condition for Outward Migration

The Astrophysical Journal
Migration typically occurs during the formation of planets and is closely linked to the planetary formation process. In classical theories of nonaccreting planetary migration, both type I and type II migration typically result in inward migration, which ...
Junpeng Pan, Ya-Ping Li, Yi-Xian Chen, Shigeru Ida, Douglas N. C. Lin   +4 more
doaj   +1 more source

Enhanced Size Uniformity for Near-resonant Planets

The Astrophysical Journal, 2023
Super-Earths within the same close-in, compact planetary system tend to exhibit a striking degree of uniformity in their radius, mass, and orbital spacing, and this “peas-in-a-pod” phenomenon itself serves to provide one of the strongest constrains on ...
Armaan V. Goyal, Fei Dai, Songhu Wang
doaj   +1 more source