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Related papers: Disk-fed giant planet formation

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The luminosity of young giant planets can inform about their formation and accretion history. The directly imaged planets detected so far are consistent with the "hot-start" scenario of high entropy and luminosity. If nebular gas passes…

Earth and Planetary Astrophysics · Physics 2016-12-07 J. Szulágyi , C. Mordasini

According to the sequential accretion model, giant planet formation is based first on the formation of a solid core which, when massive enough, can gravitationally bind gas from the nebula to form the envelope. In order to trigger the…

Earth and Planetary Astrophysics · Physics 2015-06-11 A. Fortier , Y. Alibert , F. Carron , W. Benz , K. -M. Dittkrist

In the hot-start core accretion formation model for gas giants, the interior of a planet is usually assumed to be fully convective. By calculating the detailed internal evolution of a planet assuming hot start outer boundary conditions, we…

Earth and Planetary Astrophysics · Physics 2017-09-13 David Berardo , Andrew Cumming

This paper constructs an analytic description for the late stages of giant planet formation. During this phase of evolution, the planet gains the majority of its final mass through gas accretion at a rapid rate. This work determines the…

Earth and Planetary Astrophysics · Physics 2022-08-17 Fred C Adams , Konstantin Batygin

The formation of planets depends on the underlying protoplanetary disc structure, which influences both the accretion and migration rates of embedded planets. The disc itself evolves on time-scales of several Myr during which both…

Earth and Planetary Astrophysics · Physics 2018-02-07 Bertram Bitsch , Michiel Lambrechts , Anders Johansen

The discovery of giant planets in wide orbits represents a major challenge for planet formation theory. In the standard core accretion paradigm planets are expected to form at radial distances $\lesssim 20$ au in order to form massive cores…

Earth and Planetary Astrophysics · Physics 2018-05-30 O. M. Guilera , M. M. Miller Bertolami , M. P. Ronco

The large number of detected giant exoplanets offers the opportunity to improve our understanding of the formation mechanism, evolution, and interior structure of gas giant planets. The two main models for giant planet formation are core…

We examine the predictions of the core accretion - gas capture model concerning the efficiency of planet formation around stars with various masses. First, we follow the evolution of gas and solids from the moment when all solids are in the…

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

(Abridged) We consider models of gas giant planets forming in protoplanetary disks consisting of solid cores with gaseous envelopes in contact with their critical Hill spheres while accreting gas from the surrounding disk.We suppose the…

Astrophysics · Physics 2009-11-10 John C. B. Papaloizou , Richard P. Nelson

The composition of giant planets' atmospheres is an important tracer of their formation history. While many theoretical studies investigate the heavy-element accretion within a gaseous protoplanetary disk, the possibility of solid accretion…

Earth and Planetary Astrophysics · Physics 2024-07-17 S. Shibata , R. Helled

We present a new model of giant planet formation that extends the core-accretion model of Pollack etal (1996) to include migration, disc evolution and gap formation. We show that taking into account these effects can lead to a much more…

Astrophysics · Physics 2011-05-05 Yann Alibert , Christoph Mordasini , Willy Benz , Christophe Winisdoerffer

We present models of giant planet migration in evolving protoplanetary disks. Our disks evolve subject to viscous transport of angular momentum and photoevaporation, while planets undergo Type II migration. We use a Monte Carlo approach,…

Earth and Planetary Astrophysics · Physics 2014-11-20 R. D. Alexander , P. J. Armitage

Planet formation is directly linked to the birthing environment that protoplanetary disks provide. The disk properties determine whether a giant planet will form and how it evolves. The number of exoplanet and disk observations is…

Earth and Planetary Astrophysics · Physics 2023-11-08 Sofia Savvidou , Bertram Bitsch

Planets form in the discs of gas and dust that surround young stars. It is not known whether gas giant planets on wide orbits form the same way as Jupiter or by fragmentation of gravitationally unstable discs. Here we show that a giant…

Earth and Planetary Astrophysics · Physics 2015-09-16 Dimitris Stamatellos

Gas giant planets may form early-on during the evolution of protostellar discs, while these are relatively massive. We study how Jupiter-mass planet-seeds (termed protoplanets) evolve in massive, but gravitationally stable (Q>1.5), discs…

Earth and Planetary Astrophysics · Physics 2018-04-18 Dimitris Stamatellos , Shu-ichiro Inutsuka

In the standard model of core accretion, the formation of giant planets occurs by two main processes: first, a massive core is formed by the accretion of solid material; then, when this core exceeds a critical value (typically greater than…

Earth and Planetary Astrophysics · Physics 2015-11-25 O. M. Guilera

Giant planets are expected to form at orbital radii that are relatively large compared to transit and radial velocity detections (>1 AU). As a result, giant planet formation is best observed through direct imaging. By simulating the…

Earth and Planetary Astrophysics · Physics 2019-09-19 A. L. Wallace , M. J. Ireland

We review the current theoretical understanding how growth from micro-meter sized dust to massive giant planets occurs in disks around young stars. After introducing a number of observational constraints from the solar system, from observed…

Earth and Planetary Astrophysics · Physics 2010-12-24 Christoph Mordasini , Hubert Klahr , Yann Alibert , Willy Benz , Kai-Martin Dittkrist

Planets form in disks around young stars. Interactions with these disks cause them to migrate and thus affect their final orbital periods. We suggest that the connection between planets and disks may be deeper and involve a symbiotic…

Astrophysics · Physics 2009-11-10 Re'em Sari , Peter Goldreich

Theories of planet formation predict the birth of giant planets in the inner, dense, and gas-rich regions of the circumstellar disks around young stars. These are the regions from which strong CO emission is expected. Observations have so…

Solar and Stellar Astrophysics · Physics 2015-05-20 Zs. Regaly , L. Kiss , Zs. Sandor , C. P. Dullemond
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