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Related papers: Stellar irradiated discs and implications on migra…

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The migration strength and direction of embedded low-mass planets depends on the disc structure. In discs with an efficient radiative transport, the migration can be directed outwards for planets with more than 3-5 Earth masses. This is due…

Earth and Planetary Astrophysics · Physics 2014-10-22 Bertram Bitsch , Alessandro Morbidelli , Elena Lega , Kathrine Kretke , Aurélien Crida

The strength and direction of migration of low mass planets depends on the disc's thermodynamics. In discs where the viscous heating is balanced by radiative transport, the migration can be directed outwards, a process which extends the…

Earth and Planetary Astrophysics · Physics 2014-01-09 Bertram Bitsch , Aurélien Crida , Alessandro Morbidelli , Willy Kley , Ian Dobbs-Dixon

The migration of growing protoplanets depends on the thermodynamics of the ambient disc. Standard modelling, using locally isothermal discs, indicate in the low planet mass regime an inward (type-I) migration. Taking into account…

Earth and Planetary Astrophysics · Physics 2015-05-13 Willy Kley , Bertram Bitsch , Hubert Klahr

For the very first time we present 3D simulations of planets embedded in stellar irradiated discs. It is well known that thermal effects could reverse the direction of planetary migration from inwards to outwards, potentially saving planets…

Earth and Planetary Astrophysics · Physics 2015-07-21 E. Lega , A. Morbidelli , B. Bitsch , A. Crida , J. Szulagyi

While planets in the solar system only have a low inclination with respect to the ecliptic there is mounting evidence that in extrasolar systems the inclination can be very high, at least for close-in planets. One process to alter the…

Earth and Planetary Astrophysics · Physics 2014-01-09 Bertram Bitsch , Willy Kley

The strength and direction of migration of low mass embedded planets depends on the disk's thermodynamic state, where the internal dissipation is balanced by radiative transport, and the migration can be directed outwards, a process which…

Earth and Planetary Astrophysics · Physics 2014-01-09 B. Bitsch , A. Boley , W. Kley

We perform three-dimensional self-gravitating radiative transfer simulations of protoplanet migration in circumstellar discs to explore the impact upon migration of the radial temperature profiles in these discs. We model protoplanets with…

Earth and Planetary Astrophysics · Physics 2015-05-27 Ben A. Ayliffe , Matthew R. Bate

The migration of planets plays an important role in the early planet-formation process. An important problem has been that standard migration theories predict very rapid inward migration, which poses problems for population synthesis…

Earth and Planetary Astrophysics · Physics 2014-01-09 Bertram Bitsch , Willy Kley

Migration of giant planets in discs with low viscosity has been studied recently. The proportionality between migration speed and the disc's viscosity is broken by the presence of vortices that appear at the edges of the planet-induced gap.…

Earth and Planetary Astrophysics · Physics 2022-02-02 E. Lega , A. Morbidelli , R. P. Nelson , X. S. Ramos , A. Crida , W. Bethune , K. Batygin

With an average eccentricity of about 0.29, the eccentricity distribution of extrasolar planets is markedly different from the solar system. Among other scenarios considered, it has been proposed that eccentricity may grow through…

Earth and Planetary Astrophysics · Physics 2014-01-09 Bertram Bitsch , Willy Kley

Disc-driven planet migration is integral to the formation of planetary systems. In standard, gas-dominated protoplanetary discs, low-mass planets or planetary cores undergo rapid inwards migration and are lost to the central star. However,…

Earth and Planetary Astrophysics · Physics 2020-07-29 He-Feng Hsieh , Min-Kai Lin

In this paper, we address the migration of small mass planets in 3D radiative disks. Indeed, migration of small planets is known to be too fast inwards in locally isothermal conditions. However, thermal effects could reverse its direction,…

Earth and Planetary Astrophysics · Physics 2015-06-18 E. Lega , A. Crida , B. Bitsch , A. Morbidelli

When considering the migration of Jupiter and Saturn, a classical result is to find the planets migrating outwards and locked in the 3:2 mean motion resonance (MMR). These results were obtained in the framework of viscously accreting discs,…

Earth and Planetary Astrophysics · Physics 2023-04-26 P. Griveaud , A. Crida , E. Lega

We present the results of hydrodynamical simulations of the orbital evolution of planets undergoing runaway gas accretion in radiative discs. We consider accreting disc models with constant mass flux through the disc, and where radiative…

Earth and Planetary Astrophysics · Physics 2016-09-21 Arnaud Pierens , Sean Raymond

Context: Several recent studies have found that planet migration in adiabatic discs differs significantly from migration in isothermal discs. Depending on the thermodynamic conditions, i.e., the effectiveness of radiative cooling, and the…

Earth and Planetary Astrophysics · Physics 2014-09-05 K. -M. Dittkrist , C. Mordasini , H. Klahr , Y. Alibert , T. Henning

The irradiation of protoplanetary discs by central stars is the main heating mechanism for discs, resulting in their flared geometric structure. In a series of papers, we investigate the deep links between 2D self-consistent disc structure…

Earth and Planetary Astrophysics · Physics 2015-05-14 Yasuhiro Hasegawa , Ralph E. Pudritz

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. Hence, this migration process gives…

Earth and Planetary Astrophysics · Physics 2015-05-27 Willy Kley

(Abridged) We present global disc and local shearing box simulations of planets interacting with a MHD turbulent disc. We examine the torque exerted by the disc on the embedded planets as a function of planet mass, and thus make a first…

Astrophysics · Physics 2008-11-26 Richard P. Nelson , John C. B. Papaloizou

We study the dynamics of a system of two super-Earths embedded in a protoplanetary disc. We build a simple model of an irradiated viscous disc and use analytical prescriptions for the planet-disc interactions which lead to migration. We…

Earth and Planetary Astrophysics · Physics 2015-09-09 Cezary Migaszewski

Recent studies on planet-dominated Type II migration demonstrated the presence of a correlation between the direction of planet migration and the parameter K describing the depth of the planetary gap. It was found that high (low) value for…

Earth and Planetary Astrophysics · Physics 2025-10-23 Chiara E. Scardoni , Giovanni P. Rosotti , Cathie J. Clarke , Enrico Ragusa , Richard A. Booth
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