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Planetesimal formation via the streaming and gravitational instabilities of dust in protoplanetary disks requires a local enhancement of the dust-to-gas mass ratio. Radial drift of large grains toward pressure bumps in gas disks is a…

Earth and Planetary Astrophysics · Physics 2024-11-21 Satoshi Okuzumi

Protoplanetary disc mass is one of the most fundamental properties of a planet-forming system, as it sets the total mass budget available for planet formation. However, obtaining disc mass measurements remain challenging, since it is not…

Earth and Planetary Astrophysics · Physics 2026-02-17 Matthew Murray , Cassandra Hall , Hans Baehr , Jason Terry

Dust constitutes only about one percent of the mass of circumstellar disks, yet it is of crucial importance for the modeling of planet formation, disk chemistry, radiative transfer and observations. The initial growth of dust from…

Earth and Planetary Astrophysics · Physics 2011-07-19 T. Birnstiel

When imaged at high-resolution, many proto-planetary discs show gaps and rings in their dust sub-mm continuum emission profile. These structures are widely considered to originate from local maxima in the gas pressure profile. The…

Earth and Planetary Astrophysics · Physics 2020-05-06 Giovanni P. Rosotti , Richard Teague , Cornelis Dullemond , Richard A. Booth , Cathie Clarke

Dust growth is often neglected when building models of protoplanetary disks due to its complexity and computational expense. However, it does play a major role in shaping the evolution of protoplanetary dust and planet formation. In this…

Earth and Planetary Astrophysics · Physics 2020-01-08 Joanna Drazkowska , Shengtai Li , Til Birnstiel , Sebastian M. Stammler , Hui Li

In our previous study (Tsukamoto {\it et al.} 2023), we investigated formation and early evolution of protoplanetary disks with 3D non-ideal magnetohydrodynamics simulations considering dust growth, and found that the modified equations of…

Solar and Stellar Astrophysics · Physics 2024-04-23 Yusuke Tsukamoto

We investigate the dynamics of dust concentration in actively accreting, substructured, non-ideal MHD wind-launching disks using 2D and 3D simulations incorporating pressureless dust fluids of various grain sizes and their aerodynamic…

Earth and Planetary Astrophysics · Physics 2025-05-14 Chun-Yen Hsu , Zhi-Yun Li , Yisheng Tu , Xiao Hu , Min-Kai Lin

We investigate the simultaneous evolution of dust and gas density profiles at a radial pressure bump located in a protoplanetary disk. If dust particles are treated as test particles, a radial pressure bump traps dust particles that drift…

Earth and Planetary Astrophysics · Physics 2016-06-22 Tetsuo Taki , Masaki Fujimoto , Shigeru Ida

The gas and dust are spatially segregated in protoplanetary disks due to the vertical settling and radial drift of large grains. A fuller accounting of the mass content and distribution in disks therefore requires spectral line…

Astrophysics of Galaxies · Physics 2016-10-12 Jonathan P. Williams , Conor McPartland

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

Measuring the amount of gas and dust in protoplanetary disks is a key challenge in planet formation studies. Here we provide a new set of dust depletion factors and relative mass surface densities of gas and dust for the innermost regions…

Earth and Planetary Astrophysics · Physics 2022-06-29 Adam S. Jermyn , Mihkel Kama

Context. The water snowline divides dry and icy solid material in protoplanetary disks, and has been thought to significantly affect planet formation at all stages. If dry particles break up more easily than icy ones, then the snowline…

Earth and Planetary Astrophysics · Physics 2020-04-01 Matías Gárate , Til Birnstiel , Joanna Drazkowska , Sebastian Markus Stammler

Context. Current models of the size- and radial evolution of dust in protoplanetary disks generally oversimplify either the radial evolution of the disk (by focussing at one single radius or by using steady state disk models) or they assume…

Earth and Planetary Astrophysics · Physics 2010-05-03 T. Birnstiel , C. P. Dullemond , F. Brauer

Context: The global size and spatial distribution of dust is an important ingredient in the structure and evolution of protoplanetary disks and in the formation of larger bodies, such as planetesimals. Aims: We aim to derive simple…

Earth and Planetary Astrophysics · Physics 2012-03-12 T. Birnstiel , H. Klahr , B. Ercolano

How do dust grains in protoplanetary disks overcome rapid radial drift and grow from micron size particles to planets is not well understood. The key is to search for evidence of dust accumulation and growth as a function of radius in the…

Earth and Planetary Astrophysics · Physics 2022-12-14 Dafa Li , Yao Liu , Hongchi Wang , Yao Wang , Yuehui Ma

We analyze the dynamics of gas-dust coupling in the presence of stellar radiation pressure in circumstellar gas disks, which are in a transitional stage between the gas-dominated, optically thick, primordial nebulae, and the dust-dominated,…

Astrophysics · Physics 2009-10-31 Taku Takeuchi , Pawel Artymowicz

The rapid depletion of dust particles in protoplanetary disks limits the time available for planetesimal formation, as solids are typically accreted onto the central star before dust particles can undergo substantial growth. Dust traps…

Earth and Planetary Astrophysics · Physics 2026-01-06 D. Tarczay-Nehéz

The process of turbulent radial mixing in protoplanetary disks has strong relevance to the analysis of the spatial distribution of crystalline dust species in disks around young stars and to studies of the composition of meteorites and…

Astrophysics · Physics 2009-11-13 Ya. Pavlyuchenkov , C. P. Dullemond

We calculate the chemical evolution of protoplanetary disks considering radial viscous accretion, vertical turbulent mixing and vertical disk winds. We study the effects on the disk chemical structure when different models for the formation…

Earth and Planetary Astrophysics · Physics 2015-05-27 Dominikus Heinzeller , Hideko Nomura , Catherine Walsh , Tom J. Millar

The Rosseland mean opacity of dust in protoplanetary disks is often calculated assuming the interstellar medium (ISM) size distribution and a constant dust-to-gas ratio. However, the dust size distribution and the dust-to-gas ratio in…

Earth and Planetary Astrophysics · Physics 2021-09-28 Yayaati Chachan , Eve J. Lee , Heather A. Knutson
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