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Related papers: Inside-Out Planet Formation. III. Planet-disk inte…

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The formation of circumplanetary disks is central to our understanding of giant planet formation, influencing their growth rate during the post-runaway phase and observability while embedded in protoplanetary disks. We use 3D global…

Earth and Planetary Astrophysics · Physics 2024-08-22 Leonardo Krapp , Kaitlin M. Kratter , Andrew N. Youdin , Pablo Benítez-Llambay , Frédéric Masset , Philip J. Armitage

We use a population synthesis model that includes pebbles and gas accretion, planetary migration, and a simplified chemistry scheme to study the formation of hot-Jupiters. Models have been proposed that these planets can either originate…

Earth and Planetary Astrophysics · Physics 2017-03-22 Mohamad Ali-Dib

The inner edge of the dead zone in protoplanetary disks has been shown to periodically go unstable, leading to accretion outbursts and annular substructure within the dead zone. While dust opacities play a key role in this process, the…

Earth and Planetary Astrophysics · Physics 2026-04-21 Alexandros Ziampras , Tilman Birnstiel , Nicolas Kaufmann , Michael Cecil , Thomas Pfeil

In this short review, we summarize our present understanding (and non-understanding) of exoplanet formation, structure and evolution, in the light of the most recent discoveries. Recent observations of transiting massive brown dwarfs seem…

Solar and Stellar Astrophysics · Physics 2015-05-20 G. Chabrier , J. Leconte , I. Baraffe

This paper reviews coagulation models for planet formation in the Kuiper Belt, emphasizing links to recent observations of our and other solar systems. At heliocentric distances of 35-50 AU, single annulus and multiannulus planetesimal…

Astrophysics · Physics 2009-11-07 Scott J. Kenyon

With n-body simulations, we model terrestrial circumbinary planet (CBP) formation with an initial surface density profile motivated by hydrodynamic circumbinary gas disc simulations. The binary plays an important role in shaping the initial…

Earth and Planetary Astrophysics · Physics 2021-09-01 Anna C. Childs , Rebecca G. Martin

The discovery of Jupiter-mass planets in close orbits about their parent stars has challenged models of planet formation. Recent observations have shown that a number of these planets have highly inclined, sometimes retrograde orbits about…

Earth and Planetary Astrophysics · Physics 2015-05-20 James Guillochon , Enrico Ramirez-Ruiz , Douglas N. C. Lin

Observations have confirmed the existence of multiple-planet systems containing a hot Jupiter and smaller planetary companions. Examples include WASP-47, Kepler-730, and TOI-1130. We examine the plausibility of forming such systems in situ…

Earth and Planetary Astrophysics · Physics 2021-05-26 Sanson T. S. Poon , Richard P. Nelson , Gavin A. L. Coleman

It is often assumed that the "Kepler dichotomy" -- the apparent excess of planetary systems with a single detected transiting planet in the Kepler catalog -- reflects an intrinsic bimodality in the mutual inclinations of planetary orbits.…

Earth and Planetary Astrophysics · Physics 2022-10-05 Brianna Zawadzki , Daniel Carrera , Eric B. Ford

Recent studies indicate that circumstellar disks exhibit weak turbulence, with their dynamics and evolution being primarily influenced by magnetic winds. However, most numerical studies have focused on planet-disk interactions in turbulent…

Earth and Planetary Astrophysics · Physics 2025-04-02 Gaylor Wafflard-Fernandez , Geoffroy Lesur

A key challenge for protoplanetary disks and planet formation models is to be able to make a reliable connection between observed structures in the disks emission, like bright and dark rings or asymmetries, and the supposed existence of…

Earth and Planetary Astrophysics · Physics 2020-02-19 Gaylor Wafflard-Fernandez , Clément Baruteau

We present a series of calculations aimed at examining how an inner system of planetesimals/protoplanets, undergoing terrestrial planet formation, evolves under the influence of a giant planet undergoing inward type II migration through the…

Astrophysics · Physics 2008-11-26 Martyn J. Fogg , Richard P. Nelson

We present formation simulations of the six Kepler 11 planets. Models assume either in situ or ex situ assembly, the latter with migration, and are evolved to the estimated age of the system, 8 Gyr. Models combine detailed calculations of…

Earth and Planetary Astrophysics · Physics 2016-08-31 Gennaro D'Angelo , Peter Bodenheimer

We present radiation hydrodynamic simulations in which binary planets form by close encounters in a system of several super-Earth embryos. The embryos are embedded in a protoplanetary disk consisting of gas and pebbles and evolve in a…

Earth and Planetary Astrophysics · Physics 2018-12-12 Ondřej Chrenko , Miroslav Brož , David Nesvorný

While many observed debris disks are thought to have gaps suggestive of the presence of planets, direct imaging surveys do not find many high mass planets in these systems. We investigate if divergent migration is a viable mechanism for…

Earth and Planetary Astrophysics · Physics 2018-10-17 Sarah J. Morrison , Kaitlin M. Kratter

In this paper, we investigate how external photo-evaporation influences the formation, dynamical evolution and the resultant planetary architecture of multi-planet systems born in stellar clusters. We use a model of N-body simulations of…

Earth and Planetary Astrophysics · Physics 2026-01-08 Lin Qiao , Gavin A. L. Coleman , Thomas J. Haworth

There are two planetary formation scenarios: core accretion and gravitational disk instability. Based on the fact that gaseous objects are preferentially observed around metal-rich host stars, most extra-solar gaseous objects discovered to…

Earth and Planetary Astrophysics · Physics 2019-05-08 Shohei Goda , Taro Matsuo

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

Terrestrial planets are commonly observed to orbit M dwarfs with close-in trajectories. In this work, we extensively perform N-body simulations of planetesimal accretion with three models of in-situ, inward migration and reversed migration…

Earth and Planetary Astrophysics · Physics 2022-08-02 Mengrui Pan , Su Wang , Jianghui Ji

Isotopic properties of meteorites provide evidence that multiple dust trap or pressure bumps had to form and persist in the inner Solar System on a timescale of millions of years. The formation of a pressure bump at the outer edge of the…

Earth and Planetary Astrophysics · Physics 2025-10-08 E. Lega , A. Morbidelli , F. Masset , W. Béthune
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