English
Related papers

Related papers: Two-fluid dusty shocks: simple benchmarking proble…

200 papers

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

Recent observations of gaps and non-axisymmetric features in the dust distributions of transition disks have been interpreted as evidence of embedded massive protoplanets. However, comparing the predictions of planet-disk interaction models…

Earth and Planetary Astrophysics · Physics 2015-09-16 Alexander J. W. Richert , Wladimir Lyra , Aaron Boley , Mordecai-Mark Mac Low , Neal Turner

Luminosity bursts in young FU Orionis-type stars warm up the surrounding disks of gas and dust, thus inflicting changes on their morphological and chemical composition. In this work, we aim at studying the effects that such bursts may have…

Our current understanding of the physical conditions in the inner regions of protoplanetary discs is becoming increasingly challenged by the more detailed observational and theoretical explorations. Calculation of dust temperature is one of…

Solar and Stellar Astrophysics · Physics 2011-12-05 Dejan Vinkovic

Nonlinear numerical simulations are performed to investigate the density evolution in the dust layer of a protoplanetary disk due to the gravitational instability and dust settling toward the midplane. We assume the region where the radial…

Astrophysics · Physics 2009-11-11 Fumiharu Yamoto , Minoru Sekiya

Characterizing the dust thermal structure in protoplanetary disks is a fundamental task as the dust surface temperature can affect both the planetary formation and the chemical evolution. Since the temperature is dependent on many…

Solar and Stellar Astrophysics · Physics 2023-12-13 S. Gavino , J. Kobus , A. Dutrey , S. Guilloteau , S. Wolf , J. K. Jørgensen , R. Sharma

During the first stages of planet formation, the collision growth of dust aggregates in protoplanetary discs (PPDs) is interrupted at the bouncing barrier. Dust aggregates coated by different species of ice turn out to be helpful to shift…

Earth and Planetary Astrophysics · Physics 2021-07-08 Grzegorz Musiolik

The coagulation of dust particles is a key process in planetesimal formation. However, the radial drift and bouncing barriers are not completely resolved, especially for silicate dust. Since the collision velocities of dust particles are…

Earth and Planetary Astrophysics · Physics 2018-02-28 Takashi Ishihara , Naoki Kobayashi , Kei Enohata , Masayuki Umemura , Kenji Shiraishi

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…

Investigating the dust grain size and its dependence on substructures in protoplanetary disks is a crucial step in understanding the initial process of planet formation. Spectral indices derived from millimeter observations are used as a…

Earth and Planetary Astrophysics · Physics 2024-10-08 Dafa Li , Yao Liu , Hongchi Wang , Min Fang , Lei Wang

Context: Dust grains undergo significant growth in star-forming environments, especially in dense regions prone to gravitational collapse. Although dust is generally assumed to represent $1 \%$ of the gas mass, dust density variations are…

Astrophysics of Galaxies · Physics 2026-01-14 V. Vallucci-Goy , P. Hennebelle , U. Lebreuilly , G. Verrier

Mutual sticking of dust aggregates is the first step toward planetesimal formation in protoplanetary disks. In spite that the electric charging of dust particles is well recognized in some contexts, it has been largely ignored in the…

Earth and Planetary Astrophysics · Physics 2011-02-11 Satoshi Okuzumi

The aim of this study is to examine dust dynamics on a large scale and investigate the coupling of dust with gas fluid in the star formation process. We propose a method for calculating the dust trajectory in a gravitationally collapsing…

Astrophysics of Galaxies · Physics 2022-08-17 Shunta Koga , Yoshihiro Kawasaki , Masahiro N. Machida

In recent years a number of authors have introduced methods to model the effects of radiation pressure feedback on flows of interstellar and intergalactic gas, and have posited that the forces exerted by stars' radiation output represents…

Astrophysics of Galaxies · Physics 2018-08-08 Mark R. Krumholz

This is the first paper in a series where we study the influence of turbulent diffusion and advective transport on the chemical evolution of protoplanetary disks, using a 2D flared disk model and a 2D mixing gas-grain chemical code with…

Astrophysics · Physics 2009-11-11 D. Semenov , D. Wiebe , Th. Henning

We investigate the effect of ionising radiation from Massive Young Stellar Objects impinging on their emerging spectral energy distribution. By means of detailed radiative transfer calculations including both the gaseous and dust phase of…

Astrophysics of Galaxies · Physics 2015-06-11 Barbara Ercolano , Antonia Bevan , Thomas Robitaille

Theoretical models of grain growth predict dust properties to change as a function of protoplanetary disk radius, mass, age and other physical conditions. We lay down the methodology for a multi-wavelength analysis of (sub-)mm and cm…

Recent high-spatial-resolution observations have revealed dust substructures in protoplanetary disks such as rings and gaps, which do not always correlate with gas. Because radial gas flow induced by low-mass, non-gas-gap-opening planets…

Earth and Planetary Astrophysics · Physics 2022-09-21 Ayumu Kuwahara , Hiroyuki Kurokawa , Takayuki Tanigawa , Shigeru Ida

The vertical distribution of pebbles in protoplanetary disks is a fundamental property influencing planet formation, from dust aggregation to the assembly of planetary cores. In the outer region of protoplanetary disks, the intensity of the…

Using a one-zone model for the evolution of dust in spiral galaxies and applying the instantaneous recycling approximation to the model equations, we investigate dust-to-gas ratio of spiral galaxies. Four processes are considered; dust…

Astrophysics · Physics 2009-10-31 H. Hirashita