DOI:10.1051/0004-6361:20066729 - Corpus ID: 14812137
Oligarchic planetesimal accretion and giant planet formation
@article{Fortier2007OligarchicPA, title={Oligarchic planetesimal accretion and giant planet formation}, author={A. Fortier and O. G. Benvenuto and Adri'an Brunini}, journal={arXiv: Astrophysics}, year={2007}, url={https://api.semanticscholar.org/CorpusID:14812137}}- A. FortierO. BenvenutoA. Brunini
- Published10 September 2007
- Physics
- arXiv: Astrophysics
Aims. In the context of the core instability model, we present calculations of in situ giant planet formation. The oligarchic growth regime of solid protoplanets is the model adopted for the growth of the core. Methods. The full differential equations of giant planet formation were numerically solved with an adaptation of a Henyey-type code. The planetesimals accretion rate was coupled in a self-consistent way to the envelope's evolution. Results. We performed several simulations for the…
Figures and Tables from this paper
51 Citations
Oligarchic planetesimal accretion and giant planet formation II
- A. FortierO. BenvenutoA. Brunini
- 2007
Physics
Aims. In the context of the core instability model, we present calculations of in situ giant planet formation. The oligarchic growth regime of solid protoplanets is the model adopted for the growth…
Consequences of the simultaneous formation of giant planets by the core accretion mechanism
- O. GuileraA. BruniniO. Benvenuto
- 2010
Physics
Context. The core accretion mechanism is presently the most widely accepted cause of the formation of giant planets. For simplicity, most models presently assume that the growth of planetary embryos…
Planet formation models: the interplay with the planetesimal disc
Context. According to the sequential accretion model (or core-nucleated accretion model), giant planet formation is based first on the formation of a solid core which, when massive enough, can…
Core instability models of giant planet accretion – II. Forming planetary systems
- Y. MiguelA. Brunini
- 2009
Physics
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…
Simulations of small solid accretion on to planetesimals in the presence of gas
The growth and migration of planetesimals in a young protoplanetary disc are fundamental to planet formation. In all models of early growth, there are several processes that can inhibit grains from…
Giant Planet Formation Models with a Self-consistent Treatment of the Heavy Elements
- C. VallettaR. Helled
- 2020
Physics
We present a new numerical framework to model the formation and evolution of giant planets. The code is based on the further development of the stellar evolution toolkit Modules for Experiments in…
Giant planet formation at the pressure maxima of protoplanetary disks
Context. Recent high-resolution observations of protoplanetary disks have revealed ring-like structures that can be associated to pressure maxima. Pressure maxima are known to be dust collectors and…
Infall of Planetesimals onto Growing Giant Planets: Onset of Runaway Gas Accretion and Metallicity of Their Gas Envelopes
- M. ShiraishiS. Ida
- 2008
Physics
We have investigated the planetesimal accretion rate onto giant planets that are growing through gas accretion, using numerical simulations and analytical arguments. We derived the condition for the…
Giant planet formation at the pressure maxima of protoplanetary disks
- O. GuileraO. GuileraZ. Sándor
- 2016
Physics
Context. In the classical core-accretion planet formation scenario, rapid inward migration and accretion timescales of kilometer size planetesimals may not favour the formation of massive cores of…
...
32 References
Formation of Protoplanets from Planetesimals in the Solar Nebula
Planetary accretion from planetesimals to protoplanets is investigated using three-dimensional N-body simulations. The effect of gas drag due to solar nebula is included and realistic-sized…
Formation of the Giant Planets by Concurrent Accretion of Solids and Gas
New numerical simulations of the formation of the giant of the second phase. planets are presented, in which for the first time both the gas and The actual rates at which the giant planets accreted…
Interactions of planetesimals with protoplanetary atmospheres
- M. PodolakJ. PollackR. Reynolds
- 1988
Physics, Environmental Science
Models of giant planet formation with migration and disc evolution
We present a new model of giant planet formation that extends the core-accretion model of Pollack et al. (1996, Icarus, 124, 62) to include migration, disc evolution and gap formation. We show that…
Timescales for planetary accretion and the structure of the protoplanetary disk
- J. Lissauer
- 1986
Physics
Enhanced collisional growth of a protoplanet that has an atmosphere
Once a protoplanet becomes larger than about lunar size, it accumulates a significant atmosphere that surrounds the solid core. When a planetesimal approaches the protoplanet, it interacts with the…
Planetesimals to planets: Numerical simulation of collisional evolution
- R. GreenbergJ. WackerW. HartmannC. Chapman
- 1978
Physics
Formation of Protoplanet Systems and Diversity of Planetary Systems
We investigate the formation of protoplanet systems from planetesimal disks by global (N = 5000 and 10,000 and 0.5 AU < a < 1.5 AU, where N is the number of bodies and a is the distance from a…
Scattering of Planetesimals by a Protoplanet: Slowing Down of Runaway Growth
Abstract We have investigated the evolution of random velocities of planetesimals due to scattering by a protoplanet through N-body simulations (three-dimensional calculation of a system of one…
Related Papers
Showing 1 through 3 of 0 Related Papers











