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Related papers: iSyMBA: A Symplectic Massive Bodies Integrator wit…

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We model the assembly of planets from planetary embryos under the conditions suggested by various scenarios for the formation of the planetary system around the millisecond pulsar B1257+12. We find that the most likely models fall at the…

Earth and Planetary Astrophysics · Physics 2015-05-13 Brad Hansen , Hsin-Yi Shih , Thayne Currie

In models of planetary accretion, pebbles form by dust coagulation and rapidly migrate toward the central star. Planetesimals may continuously form from pebbles over the age of the protoplanetary disk by yet uncertain mechanisms. Meanwhile,…

Earth and Planetary Astrophysics · Physics 2018-04-17 Ryuji Morishima

Terrestrial planet formation (TPF) is a difficult problem that has vexed researchers for decades. Numerical models are only partially successful at reproducing the orbital architecture of the inner planets, but have generally not considered…

Earth and Planetary Astrophysics · Physics 2025-06-12 R. Brasser

Diversity in the properties of exoplanetary systems arises, in part, from dynamical evolution that occurs after planet formation. We use numerical integrations to explore the relative role of secular and resonant dynamics in the long-term…

Earth and Planetary Astrophysics · Physics 2022-03-23 Matthew M. Murphy , Philip J. Armitage

We analyse the potential migration of massive planets forming far away from an inner planetary system. For this, we follow the dynamical evolution of the orbital elements of a massive planet undergoing a dissipative process with a gas disc…

Earth and Planetary Astrophysics · Physics 2009-11-16 Pau Amaro-Seoane , Ignasi Ribas , Ulf Loeckmann , Holger Baumgardt

We present numerical simulations of dust clumping and planetesimal formation initiated by the streaming instability with self-gravity. We examine the variability in the planetesimal formation process by employing simulation domains with…

Earth and Planetary Astrophysics · Physics 2020-11-04 Josef Rucska , James Wadsley

The formation history of Jupiter has been of interest due to its ability to shape the solar system's history. Yet little attention has been paid to the formation and growth of Saturn and the other giant planets. Here, we explore the…

Earth and Planetary Astrophysics · Physics 2024-07-31 Anuja Raorane , Ramon Brasser , Soko Matsumura , Tommy Chi Ho Lau , Man Hoi Lee , Audrey Bouvier

The ubiquity of planets and diversity of planetary systems reveal planet formation encompass many complex and competing processes. In this series of papers, we develop and upgrade a population synthesis model as a tool to identify the…

Earth and Planetary Astrophysics · Physics 2015-06-16 S. Ida , D. N. C. Lin , M. Nagasawa

Recent observations of gaps and non-axisymmetric features in the dust distributions of transition disks have been interpreted as evidence of embedded massive protoplanets. However, comparing the predictions of planet-disk interaction models…

Earth and Planetary Astrophysics · Physics 2015-09-16 Alexander J. W. Richert , Wladimir Lyra , Aaron Boley , Mordecai-Mark Mac Low , Neal Turner

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…

Many exoplanets are discovered in binary star systems in internal or in circumbinary orbits. Whether the planet can be habitable or not depends on the possibility to maintain liquid water on its surface, and therefore on the luminosity of…

Earth and Planetary Astrophysics · Physics 2021-06-23 G. De Cesare , R. Capuzzo-Dolcetta

Planetary systems form in gas-dust protoplanetary discs via the growth of solid bodies. In this paper, we show that the most intriguing stage of such growth --- namely, the transformation of 1-10 m boulders into kilometre-sized…

Earth and Planetary Astrophysics · Physics 2015-06-11 Valeriy N. Snytnikov , Olga P. Stoyanovskaya

We study the long term orbital evolution of a terrestrial planet under the gravitational perturbations of a giant planet. In particular, we are interested in situations where the two planets are in the same plane and are relatively close.…

Earth and Planetary Astrophysics · Physics 2016-06-15 Nikolaos Georgakarakos , Ian Dobbs-Dixon , Michael J. Way

Although the long-term numerical integrations of planetary orbits indicate that our planetary system is dynamically stable at least +/- Gyr, the dynamics of our Solar System includes both chaotic and stable motions: the large planets…

Astrophysics · Physics 2009-11-13 Áron Süli , Rudolf Dvorak , Florian Freistetter

In the past two decades, transit surveys have revealed a class of planets with thick atmospheres -- sub-Neptunes -- that must have completed their accretion in protoplanet disks. When planets form in the gaseous disk, the gravitational…

Earth and Planetary Astrophysics · Physics 2025-06-10 Shuo Huang , Chris Ormel , Simon Portegies Zwart , Eiichiro Kokubo , Tian Yi

We present a basic, fast, and flexible planet formation model, called SimAb (Simulating Abundances), to form giant planets and study their primary atmospheric composition soon after their formation. In SimAb we introduce parameters to…

Earth and Planetary Astrophysics · Physics 2022-11-23 N. Khorshid , M. Min , J. M. Désert , P. Woitke , C. Dominik

The observation of massive exoplanets at large separation from their host star, like in the HR 8799 system, challenges theories of planet formation. A possible formation mechanism involves the fragmentation of massive self-gravitating discs…

Earth and Planetary Astrophysics · Physics 2015-05-28 Clément Baruteau , Farzana Meru , Sijme-Jan Paardekooper

Transit surveys have revealed a significant population of compact multi-planet systems, containing several sub-Neptune-mass planets on close-in, tightly-packed orbits. These systems are thought to have formed through a final phase of giant…

Earth and Planetary Astrophysics · Physics 2021-07-21 Samuel W. Yee , Daniel Tamayo , Samuel Hadden , Joshua N. Winn

In this work, we extensively investigate the terrestrial planetary formation for the inclined planetary systems (considering the OGLE-2006-BLG-109L system as prototype) in the late stage. In the simulations, we show that the occurrence of…

Earth and Planetary Astrophysics · Physics 2011-12-07 Sheng Jin , Jianghui Ji

It is difficult to imagine a planet formation model that does not at some stage include a gravitationally unstable disc. Initially unstable gas-dust discs may form planets directly, but the high surface density required has motivated the…

Astrophysics · Physics 2009-11-13 Alexander Hubbard , Eric G. Blackman