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Protoplanetary disk substructures are thought to play a crucial role in disk evolution and planet formation. Population studies of disks large-sample size surveys show that substructures, and their rapid formation, are needed to reproduce…

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

Observations of protoplanetary disks provide information on planet formation and the reasons for the diversity of planetary systems. The key to understanding planet formation is the study of dust evolution from small grains to pebbles.…

Earth and Planetary Astrophysics · Physics 2023-03-22 Riccardo Franceschi , Tilman Birnstiel , Thomas Henning , Anirudh Sharma

Protoplanetary disks surrounding young stars are the birth place of planets. Of particular interest are the transition disks with large inner dust cavities of tens of au, hinting at the presence of massive companions. These cavities were…

Earth and Planetary Astrophysics · Physics 2023-03-23 Nienke van der Marel

Millimeter emitting dust grains have sizes that make them susceptible to drift in protoplanetary disks due to a difference between their orbital speed and that of the gas. The characteristic drift timescale depends on the surface density of…

Earth and Planetary Astrophysics · Physics 2024-10-10 Jonathan P. Williams , Caleb Painter , Alexa R. Anderson , Alvaro Ribas

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

Detailed models for the density and temperature profiles of gas and dust in protoplanetary disks are constructed by taking into account X-ray and ultraviolet (UV) irradiation from a central T Tauri star, as well as dust size growth and…

Astrophysics · Physics 2011-02-11 H. Nomura , Y. Aikawa , M. Tsujimoto , Y. Nakagawa , T. J. Millar

Planets are born from disks of gas and dust, and observations of protoplanetary disks are used to constrain the initial conditions of planet formation. However, dust mass measurements of Class II disks with ALMA have called into question…

Earth and Planetary Astrophysics · Physics 2021-10-27 Gijs D. Mulders , Ilaria Pascucci , Fred J. Ciesla , Rachel B. Fernandes

In this paper we review recent progress in our understanding of the chemical evolution of protoplanetary disks. Current observational constraints and theoretical modeling on the chemical composition of gas and dust in these systems are…

Astrophysics of Galaxies · Physics 2015-05-28 Dmitry A. Semenov

Recent surveys of protoplanetary disks show that substructure in dust thermal continuum emission maps is common in protoplanetary disks. These substructures, most prominently rings and gaps, shape and change the chemical and physical…

Earth and Planetary Astrophysics · Physics 2020-12-17 Felipe Alarcon , Richard Teague , Ke Zhang , Edwin Bergin , Marcelo Barraza-Alfaro

Recent observations have uncovered a correlation between the accretion rates (measured from the UV continuum excess) of protoplanetary discs and their masses inferred from observations of the sub-mm continuum. While viscous evolution models…

Earth and Planetary Astrophysics · Physics 2020-09-30 Andrew D. Sellek , Richard A. Booth , Cathie J. Clarke

During the past five years, the Spitzer Space Telescope and improved ground-based facilities have enabled a huge increase in the number of circumstellar disks, around young stars of Solar mass or smaller, in which the composition of the…

Solar and Stellar Astrophysics · Physics 2009-02-17 Dan M. Watson

Substructures such as rings, gaps, and cavities are commonly observed in protoplanetary discs and are thought to play a key role in dust evolution and planet formation. However, a fraction of the extended discs (68% dust radii > 30 AU) in…

Earth and Planetary Astrophysics · Physics 2026-04-10 Quincy Bosschaart , Osmar M. Guerra-Alvarado , Nienke van der Marel , Gijs D. Mulders

Characterizing the physical properties of dust grains in a protoplanetary disk is critical to comprehending the planet formation process. Our study presents ALMA high-resolution observations of the young protoplanetary disk around DG Tau at…

This manuscript investigates the impact of key dust evolution parameters on dust retention and trapping in protoplanetary discs. Using models with and without pressure bumps, combined with radiative transfer simulations, images of the dust…

Earth and Planetary Astrophysics · Physics 2026-01-07 Paola Pinilla

We study the dynamics of a viscous protoplanetary disc hosting a population of dust grains with a range of sizes. We compute steady-state solutions, and show that the radial motion of both the gas and the dust can deviate substantially from…

Earth and Planetary Astrophysics · Physics 2018-11-26 Giovanni Dipierro , Guillaume Laibe , Richard Alexander , Mark Hutchison

We investigate the behaviour of dust in protoplanetary disks under the action of gas drag using our 3D, two-fluid (gas+dust) SPH code. We present the evolution of the dust spatial distribution in global simulations of planetless disks as…

Astrophysics · Physics 2009-11-13 Jean-François Gonzalez , Laure Fouchet , Sarah T. Maddison , Guillaume Laibe

The spatial distribution of gas and solids in protoplanetary disks determines the composition and formation efficiency of planetary systems. A number of disks show starkly different distributions for the gas and small grains compared to…

Solar and Stellar Astrophysics · Physics 2016-12-07 L. Ilsedore Cleeves , Karin I. Öberg , David J. Wilner , Jane Huang , Ryan A. Loomis , Sean M. Andrews , Ian Czekala

The similar orbital distances and detection rates of debris disks and the prominent rings observed in protoplanetary disks suggest a potential connection between these structures. We explore this connection with new calculations that follow…

Earth and Planetary Astrophysics · Physics 2022-02-02 Joan R. Najita , Scott J. Kenyon , Benjamin C. Bromley

The impact of stellar multiplicity on the evolution of planet-forming disks is still the subject of debate. Here we present and analyze disk structures around ten multiple stellar systems that were included in an unbiased, high spatial…