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Related papers: Chemistry in an Evolving Protoplanetary Disk: Effe…

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Protoplanetary discs are dynamic environments where the interplay between chemical processes and mass transport shapes the composition of gas and dust available for planet formation. We investigate the combined effects of volatile chemistry…

Planets form and obtain their compositions from the leftover material present in protoplanetary disks of dust and gas surrounding young stars. The chemical make-up of a disk influences every aspect of planetary composition including their…

Earth and Planetary Astrophysics · Physics 2025-10-28 Martin Bizzarro , Anders Johansen , Caroline Dorn

The formation of planetesimals is a necessary step in the formation of planets. While several mechanisms have been proposed, a local dust-to-gas ratio above unity is a strong requirement to trigger the collapse of pebble clouds into…

Earth and Planetary Astrophysics · Physics 2025-09-03 Konstantinos Odysseas Xenos , Bertram Bitsch , Geoffrey Andama

We study the formation conditions of icy planetesimals in protoplanetary disks in order to determine the composition of ices in small and cold extrasolar planets. Assuming that ices are formed from hydrates, clathrates, and pure…

One of the current challenges of planet formation theory is to explain the enrichment of observed exoplanetary atmospheres. Past studies have focused on scenarios where either pebbles or planetesimals were the heavy element enrichment's…

Earth and Planetary Astrophysics · Physics 2023-11-08 Claudia Danti , Bertram Bitsch , Jingyi Mah

Planets form in disks of gas and dust around young stars. The disk molecular reservoirs and their chemical evolution affect all aspects of planet formation, from the coagulation of dust grains into pebbles, to the elemental and molecular…

Earth and Planetary Astrophysics · Physics 2023-09-13 Karin I. Öberg , Stefano Facchini , Dana E. Anderson

Recent observations started revealing the compositions of protostellar discs and planets beyond the Solar System. In this paper, we explore how the compositions of terrestrial planets are affected by dynamical evolution of giant planets. We…

Earth and Planetary Astrophysics · Physics 2016-02-17 Soko Matsumura , Ramon Brasser , Shigeru Ida

(Abridged) Exoplanet atmospheres are thought be built up from accretion of gas as well as pebbles and planetesimals in the midplanes of planet-forming disks. The chemical composition of this material is usually assumed to be unchanged…

Earth and Planetary Astrophysics · Physics 2018-05-23 Christian Eistrup , Catherine Walsh , Ewine F van Dishoeck

Models of planet formation are mainly focused on the accretion and dynamical processes of the planets, neglecting their chemical composition. In this work, we calculate the condensation sequence of the different chemical elements for a…

Earth and Planetary Astrophysics · Physics 2015-02-25 M. P. Ronco , A. Thiabaud , U. Marboeuf , Y. Alibert , G. C. de Elía , O. M. Guilera

Planets form and obtain their compositions in disks of gas and dust around young stars. The chemical compositions of these planet-forming disks regulate all aspects of planetary compositions from bulk elemental inventories to access to…

Earth and Planetary Astrophysics · Physics 2021-02-24 Karin I. Oberg , Edwin A. Bergin

The chemical reservoir within protoplanetary disks has a direct impact on planetary compositions and the potential for life. A long-lived carbon-and nitrogen-rich chemistry at cold temperatures (<=50K) is observed within cold and evolved…

The exoplanet diversity has been linked to the disc environment in which they form, where the host star metallicity and the formation pathways play a crucial role. In the context of the core accretion paradigm, the initial stages of planet…

Earth and Planetary Astrophysics · Physics 2024-03-13 Geoffrey Andama , Jingyi Mah , Bertram Bitsch

Partial condensation of dust from the Solar nebula is likely responsible for the diverse chemical compositions of chondrites and rocky planets/planetesimals in the inner Solar system. We present a forward physical-chemical model of a…

Earth and Planetary Astrophysics · Physics 2020-05-13 Min Li , Shichun Huang , Michail I. Petaev , Zhaohuan Zhu , Jason H. Steffen

The abundances of elements in the Earth and the terrestrial planets provide the initial conditions for life and clues as to the history and formation of the Solar System. We follow the pioneering work of Bond et al. (2010) and combine…

Earth and Planetary Astrophysics · Physics 2015-06-11 Sebastian Elser , Michael R. Meyer , Ben Moore

Solar and extrasolar comets and extrasolar planets are the subject of numerous studies in order to determine their chemical composition and internal structure. In the case of planetesimals, their compositions are important as they govern in…

Earth and Planetary Astrophysics · Physics 2014-10-15 Ulysse Marboeuf , Amaury Thiabaud , Yann Alibert , Nahuel Cabral , Willy Benz

Standard models of planet formation explain how planets form in axisymmetric, unperturbed disks in single star systems. However, it is possible that giant planets could have already formed when other planetary embryos start to grow. We…

Earth and Planetary Astrophysics · Physics 2021-09-01 Kangrou Guo , Eiichiro Kokubo

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

Terrestrial planets form in a series of dynamical steps from the solid component of circumstellar disks. First, km-sized planetesimals form likely via a combination of sticky collisions, turbulent concentration of solids, and gravitational…

Astrophysics · Physics 2009-11-13 Sean N. Raymond

(Abridged) The chemical composition of planetary atmospheres has long been thought to store information regarding where and when a planet accretes its material. Predicting this chemical composition theoretically is a crucial step in linking…

Earth and Planetary Astrophysics · Physics 2020-10-28 Alex J. Cridland , Ewine F. van Dishoeck , Matthew Alessi , Ralph E. Pudritz

Solar and extrasolar planets are the subject of numerous studies aiming to determine their chemical composition and internal structure. In the case of extrasolar planets, the composition is important as it partly governs their potential…

Earth and Planetary Astrophysics · Physics 2014-10-15 Ulysse Marboeuf , Amaury Thiabaud , Yann Alibert , Nahuel Cabral , Willy Benz
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