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Related papers: Disk-fed giant planet formation

200 papers

Gas-giant planets that form via core accretion might have very different characteristics from those that form via disk-instability. Disk-instability objects are typically thought to have higher entropies, larger radii, and (generally)…

Earth and Planetary Astrophysics · Physics 2015-05-30 David S. Spiegel , Adam Burrows

Giant planets are thought to form by runaway gas accretion onto solid cores. Growth must eventually stop running away, ostensibly because planets open gaps (annular cavities) in their surrounding discs. Typical models stop runaway by…

Earth and Planetary Astrophysics · Physics 2019-10-23 Sivan Ginzburg , Eugene Chiang

We investigate the interaction between a giant planet and a viscous circumstellar disk by means of high-resolution, two-dimensional hydrodynamical simulations. We consider planet masses that range from 1 to 3 Jupiter masses (Mjup) and…

Astrophysics · Physics 2011-02-11 Gennaro D'Angelo , Stephen H. Lubow , Matthew R. Bate

According to planetary interior models, some giant planets contain large metal masses with large metal-mass fractions. HD 149026b and TOI-849b are characteristic examples of these giant planets. It has been suggested that the envelope mass…

Earth and Planetary Astrophysics · Physics 2021-04-07 Masahiro Ogihara , Yasunori Hori , Masanobu Kunitomo , Kenji Kurosaki

To understand giant planet formation, we need to focus on host stars close to $1.7\ \rm M_{\odot}$, where the occurrence rate of these planets is the highest. In this initial study, we carry out pebble-driven core accretion planet formation…

Earth and Planetary Astrophysics · Physics 2023-10-30 Heather Johnston , Olja Panic , Beibei Liu

The evolution of protoplanetary discs embedded in stellar clusters depends on the age and the stellar density in which they are embedded. Stellar clusters of young age and high stellar surface density destroy protoplanetary discs by…

Earth and Planetary Astrophysics · Physics 2017-12-20 Nelson Ndugu , Bertram Bitsch , Edward Jurua

We have investigated the problem of the distribution of both masses and orbital radii of planets resulting from the gas-accretion, gas-capture model. First we followed the evolution of gas and solids from the moment where all solids are in…

Astrophysics · Physics 2009-11-11 Kacper Kornet , Sebastian Wolf

With hundreds of exoplanets detected, it is necessary to revisit giant planets accretion models to explain their mass distribution. In particular, formation of sub-jovian planets remains unclear, given the short timescale for the runaway…

Earth and Planetary Astrophysics · Physics 2015-06-12 Guillaume Rivier , Aurélien Crida , Alessandro Morbidelli , Yann Brouet

The formation of gas-giant planets within the lifetime of a protoplanetary disk is challenging especially far from a star. A promising model for the rapid formation of giant-planet cores is pebble accretion in which gas drag during…

Earth and Planetary Astrophysics · Physics 2021-06-30 John Chambers

Gas giant planets are expected to accrete most of their mass via a circumplanetary disk. If the planet is unmagnetized and initially slowly rotating, it will accrete gas via a radially narrow boundary layer and rapidly spin up. Radial…

Earth and Planetary Astrophysics · Physics 2021-11-17 Jiayin Dong , Yan-Fei Jiang , Phil Armitage

We investigate under what circumstances an embedded planet in a protoplanetary disc may sculpt the dust distribution such that it observationally presents as a `transition' disc. We concern ourselves with `transition' discs that have large…

Earth and Planetary Astrophysics · Physics 2015-06-19 James E. Owen

We examine the accretion of cores of giant planets from planetesimals, gas accretion onto the cores, and their orbital migration. We adopt a working model for nascent protostellar disks with a wide variety of surface density distributions…

Astrophysics · Physics 2009-11-10 S. Ida , D. N. C. Lin

Observations in the past decade have revealed extrasolar planets with a wide range of orbital semimajor axes and eccentricities. Based on the present understanding of planet formation via core accretion and oligarchic growth, we expect that…

Astrophysics · Physics 2008-12-18 Sourav Chatterjee , Eric B. Ford , Soko Matsumura , Frederic A. Rasio

In the classical core-accretion planet formation scenario, rapid inward migration and accretion timescales of kilometer size planetesimals may not favor the formation of massive cores of giant planets before the dissipation of…

Earth and Planetary Astrophysics · Physics 2017-07-26 O. M. Guilera , Zs. Sándor

I discuss the role that disc fragmentation plays in the formation of gas giant and terrestrial planets, and how this relates to the formation of brown dwarfs and low-mass stars, and ultimately to the process of star formation. Protostellar…

Earth and Planetary Astrophysics · Physics 2015-06-15 Dimitris Stamatellos

We propose a pebble-driven planet formation scenario to form giant planets with high multiplicity and large orbital distances in the early gas disk phase. We perform N-body simulations to investigate the growth and migration of low-mass…

Earth and Planetary Astrophysics · Physics 2020-06-24 John Wimarsson , Beibei Liu , Masahiro Ogihara

A model for massive stars is constructed by piecing together evolutionary algorithms for the protostellar structure, the environment, the inflow and the radiation feedback. We investigate specified accretion histories of constant,…

Astrophysics of Galaxies · Physics 2015-06-17 Michael D. Smith

We present the results of hydrodynamic simulations of the formation and subsequent orbital evolution of giant planets embedded in a circumbinary disc. We assume that a 20 earth masses core has migrated to the edge of the inner cavity formed…

Astrophysics · Physics 2009-11-13 Arnaud Pierens , Richard P. Nelson

Here a physical model for terminating giant planet formation is outlined and compared to other methods of late-stage giant planet formation. As has been pointed out before, gas accreting into a gap and onto the planet will encounter the…

Earth and Planetary Astrophysics · Physics 2018-11-21 A. J. Cridland

The formation of giant planets is best studied through direct imaging by observing planets both during and after formation. Giant planets are expected to form either by core accretion, which is typically associated with low initial entropy…

Earth and Planetary Astrophysics · Physics 2021-10-04 A. L. Wallace , M. J. Ireland , C. Federrath