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Related papers: TriPoDPy: 1D Tri-Population size distributions for…

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We study dust concentration in axisymmetric gas rings in protoplanetary disks. Given the gas surface density, we derived an analytical total dust surface density by taking into account the differential concentration of all the grain sizes.…

Earth and Planetary Astrophysics · Physics 2019-05-01 Anibal Sierra , Susana Lizano , Enrique Macías , Carlos Carrasco-González , Mayra Osorio , Mario Flock

We review advances in the modeling of protoplanetary disks. This review will focus on the regions of the disk beyond the dust sublimation radius, i.e. beyond 0.1 - 1 AU, depending on the stellar luminosity. We will be mostly concerned with…

Astrophysics · Physics 2007-05-23 C. P. Dullemond , D. Hollenbach , I. Kamp , P. D'Alessio

How substructures and disk properties affect dust evolution and the delivery of solids and volatiles into planet-forming regions remains an open question. We present results from tailored dust evolution modeling of the AGE-PRO ALMA large…

The crucial initial step in planet formation is the agglomeration of micron-sized dust into macroscopic aggregates. This phase is likely to happen very early during the protostellar disc formation, which is characterised by active gas…

Earth and Planetary Astrophysics · Physics 2020-10-14 Vitaly Akimkin , Eduard Vorobyov , Yaroslav Pavlyuchenkov , Olga Stoyanovskaya

Planet formation models rely on knowledge of the physical conditions and evolutionary processes in protoplanetary disks, in particular the grain size distribution and dust growth timescales. In theoretical models, several barriers exist…

Earth and Planetary Astrophysics · Physics 2024-01-26 Nienke van der Marel , Paola Pinilla

We derive the single-fluid evolution equations describing a mixture made of a gas phase and an arbitrary number of dust phases, generalising the approach developed in Laibe & Price (2014a). A generalisation for continuous dust distributions…

Earth and Planetary Astrophysics · Physics 2015-06-22 Guillaume Laibe , Daniel J. Price

We study the dynamics and growth of dust particles in circumstellar disks of different masses that are prone to gravitational instability during the critical first Myr of their evolution. The dust component is made up of two different…

Earth and Planetary Astrophysics · Physics 2020-05-06 Vardan G. Elbakyan , Anders Johansen , Michiel Lambrechts , Vitaly Akimkin , Eduard I. Vorobyov

The mass of protoplanetary disks is arguably one of their most important quantities shaping their evolution toward planetary systems, but it remains a challenge to determine this quantity. Using the high spatial resolution now available on…

Earth and Planetary Astrophysics · Physics 2022-01-19 Riccardo Franceschi , Tilman Birnstiel , Thomas Henning , Paola Pinilla , Dmitry Semenov , Apostolos Zormpas

We present the results of a three dimensional, locally isothermal, non-self-gravitating SPH code which models protoplanetary disks with two fluids: gas and dust. We ran simulations of a 1 Msun star surrounded by a 0.01 Msun disk comprising…

Protoplanetary disks are dispersed by viscous evolution and photoevaporation in a few million years; in the interim small, sub-micron sized dust grains must grow and form planets. The time-varying abundance of small grains in an evolving…

Earth and Planetary Astrophysics · Physics 2015-06-24 Uma Gorti , David Hollenbach , Cornelis Dullemond

Models of chemical evolution of galaxies including the dust are nowadays required to decipher the high-z universe. In a series of three papers we have tackled the problem and set a modern chemical evolution model. In the first paper (Piovan…

Astrophysics of Galaxies · Physics 2011-07-25 L. Piovan , C. Chiosi , E. Merlin , T. Grassi , R. Tantalo , U. Buonomo , L. P. Cassarà

Dust is a major component of protoplanetary and debris disks as it is the main observable signature of planetary formation. However, since dust dynamics is size-dependent (because of gas-drag or radiation pressure) any attempt to understand…

Earth and Planetary Astrophysics · Physics 2015-06-05 S. Charnoz , E. Taillifet

Aims. The initial stages of planet formation may start concurrently with the formation of a gas-dust protoplanetary disk. This makes the study of the earliest stages of protoplanetary disk formation crucially important. Here we focus on…

Earth and Planetary Astrophysics · Physics 2024-01-05 Eduard Vorobyov , Igor Kulikov , Vardan Elbakyan , James McKevitt , Manuel Guedel

The size and density of dust grains determine their response to gas drag in protoplanetary discs. Aerodynamical (size x density) sorting is one of the proposed mechanisms to explain the grain properties and chemical fractionation of…

Earth and Planetary Astrophysics · Physics 2017-05-31 Francesco C. Pignatale , Jean-François Gonzalez , Nicolas Cuello , Bernard Bourdon , Caroline Fitoussi

Recent research on the buildup of rocks from small dust grains has reaffirmed that grain growth in protoplanetary disks should occur quickly. Calculation of growth rates have been made for a variety of growth processes and generally predict…

Astrophysics · Physics 2007-05-23 Steven V. W. Beckwith , Thomas Henning , Yoshitsugu Nakagawa

(abridged) In the core accretion scenario for the formation of planetary rocky cores, the first step toward planet formation is the growth of dust grains into larger and larger aggregates and eventually planetesimals. Although dust grains…

Super-thermal gas giant planets or their progenitor cores are known to open deep gaps in protoplanetary disks, which stop large, drifting dust particles on their way to the inner disk. The possible separation of the disk into distinct…

Earth and Planetary Astrophysics · Physics 2025-10-10 Thomas Pfeil , Philip J. Armitage , Yan-Fei Jiang

We consider the dynamics of dust and gas during the clearing of protoplanetary discs. We work within the context of a photoevaporation/viscous model for the evolution of the gas disc, and use a two-fluid model to study the dynamics of dust…

Astrophysics · Physics 2008-11-26 R. D. Alexander , P. J. Armitage

Aims. We numerically investigated dust enrichment and growth during the initial stages of protoplanetary disk formation. A particular objective was to determine the effects of various growth barriers, mimicked by imposing a series of upper…

Earth and Planetary Astrophysics · Physics 2025-07-02 E. I. Vorobyov , V. G. Elbakyan , A. Skliarevskii , V. Akimkin , I. Kulikov

The aim of this work is to construct an algorithm for visualizing a polydisperse phase of solid particles (dust) in an inhomogeneous flow of a two-phase gas-dust mixture that would allow us to see, within one plot, the degree of…

Astrophysics of Galaxies · Physics 2018-03-28 Vitaly V. Korolev , Mikhail A. Bezborodov , Ilya G. Kovalenko , Andrey M. Zankovich , Mikhail A. Eremin