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Related papers: Icy Volatile Enhancements in Evolving Protoplaneta…

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The material in planet-forming disks determines the composition of planets; hence, it is crucial to understand the physical and chemical processes that set the abundance and distribution of key volatiles. James Webb Space Telescope…

Earth and Planetary Astrophysics · Physics 2026-03-09 Javiera K. Díaz-Berríos , Catherine Walsh , Ewine F. van Dishoeck

The chemical and physical evolution of primitive materials in protoplanetary disks are determined by the types of environments they are exposed to and their residence times within each environment. Here a method for calculating…

Earth and Planetary Astrophysics · Physics 2015-05-20 Fred J. Ciesla

The dynamics of planetesimals and planetary cores may be strongly influenced by density perturbations driven by magneto-rotational turbulence in their natal protoplanetary gas disks. Using the local shearing box approximation, we perform…

Earth and Planetary Astrophysics · Physics 2009-12-15 Chao-Chin Yang , Mordecai-Mark Mac Low , Kristen Menou

We present a novel method for determining the surface density of protoplanetary disks through consideration of disk 'dust lines' which indicate the observed disk radial scale at different observational wavelengths. This method relies on the…

Earth and Planetary Astrophysics · Physics 2019-08-19 Diana Powell , Ruth Murray-Clay , Hilke E. Schlichting

The elemental compositions of planet hosting stars serve as proxies for the primordial compositions of the protoplanetary disks within which the planets form. The temperature profile of the disk governs the condensation fronts of various…

Earth and Planetary Astrophysics · Physics 2017-02-01 John M. Brewer , Debra A. Fischer , Nikku Madhusudhan

Stars mostly form in clusters where neighboring stars can influence proto-planetary disc evolution. Besides gravitational interactions, external photoevaporation can shape these discs. Depending on the strength of photoevaporation, discs…

Earth and Planetary Astrophysics · Physics 2024-10-30 Nelson Ndugu , Bertram Bitsch , Julia Lena Lienert

Global numerical simulations of protoplanetary disk formation and evolution were conducted in thin-disk limit, where the model included magnetically layered disk structure, a self-consistent treatment for the infall from cloud core as well…

Solar and Stellar Astrophysics · Physics 2019-09-11 Kundan Kadam , Eduard Vorobyov , Zsolt Regály , Ágnes Kóspál , Péter Ábrahám

In this article, we proceed to study convection as a possible factor of episodic accretion in protoplanetary disks. Within the model presented in Article~I, the accretion history is analyzed at different rates and areas of matter inflow…

Solar and Stellar Astrophysics · Physics 2020-09-17 L. A. Maksimova , Ya. N. Pavlyuchenkov , A. V. Tutukov

Turbulence is crucial for protoplanetary disk dynamics, and Vertical Shear Instability (VSI) is a promising mechanism in outer disk regions to generate turbulence. We use Athena++ radiation module to study VSI in full and transition disks,…

Earth and Planetary Astrophysics · Physics 2024-04-12 Shangjia Zhang , Zhaohuan Zhu , Yan-Fei Jiang

The abundances of volatile CHNOS have a profound effect on the interior structure and evolution of a planet. Therefore, it is key to investigate the behavior of the abundances of these elements in the solid phase in the earliest stages of…

Earth and Planetary Astrophysics · Physics 2024-03-01 Mark Oosterloo , Inga Kamp , Wim van Westrenen

It is usually thought that viscous torque works to align a circumbinary disk with the binary's orbital plane. However, recent numerical simulations suggest that the disk may evolve to a configuration perpendicular to the binary orbit…

Earth and Planetary Astrophysics · Physics 2017-10-11 J. J. Zanazzi , Dong Lai

High-resolution imaging reveals a large morphological variety of protoplanetary disks. To date, no constraints on their global evolution have been found from this census. An evolutionary classification of disks was proposed based on their…

Many protoplanetary disks exhibit annular gaps in dust emission, which may be produced by planets. Simulations of planet-disk interaction aimed at interpreting these observations often treat the disk thermodynamics in an overly simplified…

Earth and Planetary Astrophysics · Physics 2020-12-02 Ryan Miranda , Roman R. Rafikov

We study the dynamics of a vertically thin, dispersion-dominated disk of planetesimals with eccentricities $e$ and inclinations $i$ (normalized in Hill units) satisfying $e >> 1$, $i << e^{-2} << 1$. This situation may be typical for e.g. a…

Earth and Planetary Astrophysics · Physics 2011-09-13 Roman R. Rafikov , Zachary S. Slepian

Context. The composition of a protoplanetary disk at a given location does not only depend on temperature and pressure but also on the time dependent transport of matter, such as radial drift of solid bodies, which could release water and…

Earth and Planetary Astrophysics · Physics 2019-09-11 Remo Burn , Ulysse Marboeuf , Yann Alibert , Willy Benz

We investigate the evolution of interfaces among phases of the interstellar medium with different temperature. It is found that, for some initial conditions, the dynamical effects related to conductive fronts are very important even if…

Astrophysics · Physics 2009-10-22 Andrea Ferrara , Yuri Shchekinov

We present the latest development of the disk gravitational instability and fragmentation model, originally introduced by us to explain episodic accretion bursts in the early stages of star formation. Using our numerical hydrodynamics model…

Solar and Stellar Astrophysics · Physics 2015-06-03 Eduard I. Vorobyov , Shantanu Basu

Circumstellar disks of gas and dust are naturally formed from contracting pre-stellar molecular cores during the star formation process. To study various dynamical and chemical processes that take place in circumstellar disks prior to their…

Astrophysics of Galaxies · Physics 2017-09-27 Eduard I. Vorobyov , Yaroslav N. Pavlyuchenkov

The degree of coupling between dust particles and their surrounding gas in protoplanetary disks is quantified by the dimensionless Stokes number. The Stokes number (St) governs particle size and spatial distributions, in turn establishing…

Earth and Planetary Astrophysics · Physics 2024-08-02 Teng Ee Yap , Konstantin Batygin

Protoplanetary disks are known to posses a stunning variety of substructure in the distribution of their mm~sized grains, predominantly seen as rings and gaps (Andrews et al. 2018), which are frequently interpreted as due to the shepherding…

Earth and Planetary Astrophysics · Physics 2019-10-17 Richard Teague , Jaehan Bae , Edwin Bergin