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Planet formation models have been developed during the last years in order to try to reproduce the observations of both the solar system, and the extrasolar planets. Some of these models have partially succeeded, focussing however on…

Earth and Planetary Astrophysics · Physics 2015-06-16 Y. Alibert , F. Carron , A. Fortier , S. Pfyffer , W. Benz , C. Mordasini , D. Swoboda

The formation and evolution of planetary systems are linked to their host stellar environment. In this study, we employ a pebble accretion-based planet population synthesis model to explore the correlation between planetary properties and…

Earth and Planetary Astrophysics · Physics 2025-04-02 Mengrui Pan , Beibei Liu , Linjie Jiang , Jiwei Xie , Wei Zhu , Ignasi Ribas

The chaotic nature of planet dynamics in the solar system suggests the relevance of a statistical approach to planetary orbits. In such a statistical description, the time-dependent position and velocity of the planets are replaced by the…

Earth and Planetary Astrophysics · Physics 2017-10-18 Federico Mogavero

During the late stage of planet formation when Mars-size cores appear, interactions among planetary cores can excite their orbital eccentricities, speed their merges and thus sculpture the final architecture of planet systems. This series…

Earth and Planetary Astrophysics · Physics 2015-03-13 Huigen Liu , Ji-lin Zhou , S. Wang

This paper continues a series in which we predict the main observable characteristics of exoplanets based on their formation. In Paper I we described our global planet formation and evolution model. In Paper II we studied the planetary…

Earth and Planetary Astrophysics · Physics 2017-12-13 C. Mordasini , G. -D. Marleau , P. Mollière

We extend the results of planetary formation synthesis by computing the long-term evolution of synthetic systems from the clearing of the gas disk into the dynamical evolution phase. We use the symplectic integrator SyMBA to numerically…

Earth and Planetary Astrophysics · Physics 2015-06-24 S. Pfyffer , Y. Alibert , W. Benz , D. Swoboda

The planetary mass-radius diagram is an observational result of central importance to understand planet formation. We present an updated version of our planet formation model based on the core accretion paradigm which allows to calculate…

Earth and Planetary Astrophysics · Physics 2015-05-27 C. Mordasini , Y. Alibert , W. Benz , H. Klahr

We present the results of planet formation N-body simulations based on a comprehensive physical model that includes planetary mass growth through mutual embryo collisions and planetesimal/boulder accretion, viscous disc evolution, planetary…

Earth and Planetary Astrophysics · Physics 2016-02-17 Gavin A. L. Coleman , Richard P. Nelson

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

Forming giant planets are accompanied by circumplanetary disks, as indicated by considerations of angular momentum conservation, observations of candidate protoplanets, and the satellite systems of planets in our Solar System. This paper…

Earth and Planetary Astrophysics · Physics 2025-05-01 Fred C. Adams , Konstantin Batygin

Remnant planetesimals might have played an important role in reducing the orbital eccentricities of the terrestrial planets after their formation via giant impacts. However, the population and the size distribution of remnant planetesimals…

Astrophysics · Physics 2009-11-13 Ryuji Morishima , Max W. Schmidt , Joachim Stadel , Ben Moore

The stellar mass dependence of the unbiased giant planet occurrence rate may be the best statistical tool to constrain the formation of such planets. This rate rises and falls as a function of stellar mass, peaking around stars of $\sim…

Earth and Planetary Astrophysics · Physics 2026-03-04 Heather F Johnston , Olja Panic , Sabine Reffert , Beibei Liu , Xinghao Ma

We study the long-term dynamics of a planetary system composed of a star and a planet. Both bodies are considered as extended, non-spherical, rotating objects. There are no assumptions made on the relative angles between the orbital angular…

Earth and Planetary Astrophysics · Physics 2015-06-04 Cezary Migaszewski

Aims. The connection between initial disc conditions and final orbital and physical properties of planets is not well-understood. In this paper, we numerically study the formation of planetary systems via pebble accretion and investigate…

Earth and Planetary Astrophysics · Physics 2021-06-23 Soko Matsumura , Ramon Brasser , Shigeru Ida

We have studied the dynamical evolution of rotating star clusters with mass spectrum using a Fokker-Planck code. As a simplest multi-mass model, we first investigated the two-component clusters. Rotation is found to accelerate the dynamical…

Astrophysics · Physics 2009-11-10 Eunhyeuk Kim , Hyung Mok Lee , Rainer Spurzem

In the standard model of terrestrial planet formation, planets are formed through giant impacts of planetary embryos after the dispersal of the protoplanetary gas disc. Traditionally, $N$-body simulations have been used to investigate this…

Earth and Planetary Astrophysics · Physics 2025-05-28 Tadahiro Kimura , Haruka Hoshino , Eiichiro Kokubo , Yuji Matsumoto , Masahiro Ikoma

I attempt to piece together a consistent scenario based on current estimates of the evolution of the star formation rate of the Universe, the metallicity evolution of the star-forming regions of the Universe and the most recent observations…

Astrophysics · Physics 2007-05-23 Charles H. Lineweaver

We develop a simple model of planetary formation, focusing our attention on those planets with masses less than 10 Earth masses and studying particularly the primordial spin parameters of planets resulting from the accretion of…

Earth and Planetary Astrophysics · Physics 2015-05-18 Yamila Miguel , Adrián Brunini

The current picture of terrestrial planet formation relies heavily on our understanding of the dynamical evolution of planetesimals -- asteroid-like bodies thought to be planetary building blocks. In this study we investigate the growth of…

Astrophysics · Physics 2009-11-07 Roman R. Rafikov

Recent exoplanet surveys revealed that for solar-type stars, close-in Super-Earths are ubiquitous and many of them are in multi-planet systems. These systems are more compact than the Solar System's terrestrial planets. However, there have…

Earth and Planetary Astrophysics · Physics 2023-01-04 Haruka Hoshino , Eiichiro Kokubo
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