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Chondrules are millimeter-sized silicate spherules ubiquitous in primitive meteorites, but whose origin remains mysterious. One of the main proposed mechanisms for producing them is melting of solids in shock waves in the gaseous…

Earth and Planetary Astrophysics · Physics 2015-06-23 Emmanuel Jacquet , Christopher Thompson

Reconstruction of the thermal history of individual meteorites which can be assigned to the same parent body allows to derive general characteristics of the parent body, which hold important clues on the planetary formation process. This…

Earth and Planetary Astrophysics · Physics 2015-04-01 Hans-Peter Gail , Stephan Henke , Mario Trieloff

The demographic of circumstellar disks, the birthplaces of planets, is diverse and rich in disks featuring rings, gaps, spirals, filaments, and arcs. Many studies revealing these disk structures have focused on objects around single stars…

Solar and Stellar Astrophysics · Physics 2023-05-01 Alice Zurlo , Raffaele Gratton , Sebastián Pérez , Lucas Cieza

Planet-disk interaction predicts a change in the orbital elements of an embedded planet. Through linear and fully hydrodynamical studies it has been found that migration is typically directed inwards. Hence, this migration process gives…

Earth and Planetary Astrophysics · Physics 2015-05-27 Willy Kley

Using 17 chemical elements as a proxy for stellar DNA, we present a full phylogenetic study of stars in the solar neighbourhood. This entails applying a clustering technique that is widely used in molecular biology to construct an…

Astrophysics of Galaxies · Physics 2017-03-22 Paula Jofre , Payel Das , Jaume Bertranpetit , Robert Foley

The orbital eccentricity distribution of exoplanets is shaped by a combination of dynamical processes, reflecting both formation conditions and long-term evolution. Probing the orbital dynamics of planets in the kinematic thin and thick…

Global models of planet formation tend to begin with an initial set of planetary embryos for the sake simplicity. While this approach gives valuable insights on the evolution of the initial embryos, the initial distribution itself is a bold…

Earth and Planetary Astrophysics · Physics 2022-10-26 Oliver Voelkel , Hubert Klahr , Christoph Mordasini , Alexandre Emsenhuber

Studies of planet migration derived from disc planet interactions began before the discovery of exoplanets. The potential importance of migration for determining orbital architectures being realised, the field received greater attention…

Earth and Planetary Astrophysics · Physics 2021-12-15 J. C. B. Papaloizou

(Abridged) In this review we focus on the observations and theory of the formation of early disks and outflows, and their connections with the first phases of planet formation. Large rotationally supported circumstellar disks, although…

Solar and Stellar Astrophysics · Physics 2015-06-18 Zhi-Yun Li , Robi Banerjee , Ralph E. Pudritz , Jes K. Jørgensen , Hsien Shang , Ruben Krasnopolsky , Anaëlle Maury

Models of planet formation are built on underlying physical processes. In order to make sense of the origin of the planets we must first understand the origin of their building blocks. This review comes in two parts. The first part presents…

Earth and Planetary Astrophysics · Physics 2022-03-14 Sean N. Raymond , Alessandro Morbidelli

Isotope anomalies among planetary bodies provide key constraints on planetary genetics and the Solar System's dynamical evolution. However, to unlock the full potential of these anomalies for constraining the processing, mixing, and…

Earth and Planetary Astrophysics · Physics 2019-07-31 Christoph Burkhardt , Nicolas Dauphas , Ulrik Hans , Bernard Bourdon , Thorsten Kleine

This chapter of the book Planetary Ring Systems addresses the origin of planetary rings, one of the least understood processes related to planet formation and evolution. Whereas rings seem ubiquitous around giant planets, their great…

Earth and Planetary Astrophysics · Physics 2018-10-17 S. Charnoz , R. M. Canup , A. Crida , L. Dones

We discuss problems of planetesimal migration in the emerging Solar System and exoplanetary systems. Protoplanetary disk evolution models and the formation of planets are considered. The formation of the Moon and of the asteroid and…

Earth and Planetary Astrophysics · Physics 2023-09-06 M. Ya. Marov , S. I. Ipatov

Two fundamentally different processes of rocky planet formation exist, but it is unclear which one built the terrestrial planets of the solar system. Either they formed by collisions among planetary embryos from the inner solar system, or…

The goal of planet formation as a field of study is not only to provide the understanding of how planets come into existence. It is also an interdisciplinary bridge which links astronomy to geology and mineralogy. Recent observations of…

Earth and Planetary Astrophysics · Physics 2024-04-25 Christoph Mordasini , Remo Burn

The solar system started to form about 4.56 Gyr ago and despite the long intervening time span, there still exist several clues about its formation. The three major sources for this information are meteorites, the present solar system…

Earth and Planetary Astrophysics · Physics 2015-06-23 S. Pfalzner , M. B. Davies , M. Gounelle , A. Johansen , C. Muenker , P. Lacerda , S. Portegies Zwart , L. Testi , M. Trieloff , D. Veras

Protoplanetary disks composed of dust and gas are ubiquitous around young stars and are commonly recognized as nurseries of planetary systems. Their lifetime, appearance, and structure are determined by an interplay between stellar…

Chondrules are millimeter-sized spherules that dominate primitive meteorites (chondrites) originating from the asteroid belt. The incorporation of chondrules into asteroidal bodies must be an important step in planet formation, but the…

Earth and Planetary Astrophysics · Physics 2015-03-26 Anders Johansen , Mordecai-Mark Mac Low , Pedro Lacerda , Martin Bizzarro

We adopt a scenario in which the Galactic thick disk was formed by minor merging between the first generation of the Galactic thin disk (FGTD) and a dwarf galaxy about 9 Gyr ago and thereby investigate chemical and dynamical properties of…

Astrophysics of Galaxies · Physics 2015-05-28 Kenji Bekki , Takuji Tsujimoto

The standard model for planet formation is a bottom-up process in which the origin of rocky and gaseous planets can be traced back to the collision of micron-sized dust grains within the gas-rich environment of protoplanetary disks. Key…

Earth and Planetary Astrophysics · Physics 2025-04-14 Philip J. Armitage