Search results for " protoplanetary discs"

showing 2 items of 2 documents

How initial and boundary conditions affect protoplanetary migration in a turbulent sub-Keplerian accretion disc: 2D non-viscous SPH simulations

2009

Current theories on planetary formation establish that giant planet formation should be contextual to their quick migration towards the central star due to the protoplanets-disc interactions on a timescale of the order of $10^5$ years, for objects of nearly 10 terrestrial masses. Such a timescale should be smaller by an order of magnitude than that of gas accretion onto the protoplanet during the hierarchical growing-up of protoplanets by collisions with other minor objects. These arguments have recently been analysed using N-body and/or fluid-dynamics codes or a mixing of them. In this work, inviscid 2D simulations are performed, using the SPH method, to study the migration of one protopla…

Earth and Planetary Astrophysics (astro-ph.EP)PhysicsTurbulenceGiant planetFOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAccretion (astrophysics)Space and Planetary SciencePlanetInviscid flowBoundary value problemAstrophysics::Earth and Planetary AstrophysicsProtoplanetplanetary systems: formation • planetary systems: protoplanetary discsAstrophysics::Galaxy AstrophysicsPlanetary migrationAstrophysics - Earth and Planetary Astrophysics
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Pre-main-sequence stars older than 8 Myr in the Eagle nebula

2013

accretion accretion discs scattering protoplanetary discs circumstellar matter Hertzsprung-Russell and colour-magnitude diagrams stars: pre-main-sequencepre-main-sequence [accretion accretion discs scattering protoplanetary discs circumstellar matter Hertzsprung-Russell and colour-magnitude diagrams stars]
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