Results 51 to 60 of about 85,153 (320)
Planetary migration in resonance : the question of the eccentricities [PDF]
EAS Publications Series, 2010 The formation of resonant planets pairs in exoplanetary systems involves planetary migration inside the protoplanetary disc: an inwards migrating outer planet captures in Mean Motion Resonance an inner planet. During the migration of the resonant pair of planets, the eccentricities are expected to rise excessively, if no damping mechanism is applied on
Zs. Sándor +2 more
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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
, 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 ...
Philip J. Armitage, W. K. M. Rice
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Planetary Migration in Protoplanetary Disks [PDF]
, 2018 The known exoplanet population displays a great diversity of orbital architectures, and explaining the origin of this is a major challenge for planet formation theories. The gravitational interaction between young planets and their protoplanetary disks provides one way in which planetary orbits can be shaped during the formation epoch.
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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 +55 more
core +1 more source
Dead Zones as Thermal Barriers to Rapid Planetary Migration in Protoplanetary Disks
, 2010 Planetary migration in standard models of gaseous protoplanetary disks is known to be very rapid ($\sim 10^5$ years) jeopardizing the existence of planetary systems.
Baruteau +18 more
core +1 more source
The SOAPS project – Spin-orbit alignment of planetary systems
EPJ Web of Conferences, 2013 The wealth of information rendered by Kepler planets and planet candidates is indispensable for statistically significant studies of distinct planet populations, in both single and multiple systems.
Hebb L. +7 more
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Effect of wind-driven accretion on planetary migration [PDF]
Astronomy & Astrophysics, 2019 Context. Planetary migration is a key link between planet formation models and observed exoplanet statistics. So far, the theory of planetary migration has focused on the interaction of one or more planets with an inviscid or viscously evolving gaseous disk.
C. N. Kimmig, C. P. Dullemond, W. Kley
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Core instability models of giant planet accretion II: forming planetary systems [PDF]
, 2008 We develop a simple model for computing planetary formation based on the core instability model for the gas accretion and the oligarchic growth regime for the accretion of the solid core. In this model several planets can form simultaneously in the disc,
A. Brunini, Safronov V., Y. Miguel
core +6 more sources
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