中文
相关论文

相关论文: Self-consistent ring model in protoplanetary disks…

200 篇论文

Recent ALMA observations indicate that while a range of disk sizes exist, typical disk radii are small, and that radial dust drift affects the distribution of solids in disks. Here we explore the consequences of these features in planet…

地球与行星天体物理 · 物理学 2020-02-12 Matthew Alessi , Ralph E. Pudritz , Alex J. Cridland

During the evolution of protoplanetary disks, dust grains start to grow, form larger particles, settle to the midplane, and rearrange the disk, mainly by the inward radial drift. Because of this, dust pebbles with an irregular shape usually…

地球与行星天体物理 · 物理学 2025-11-05 Moritz Lietzow-Sinjen , Stefan Reissl , Mario Flock , Sebastian Wolf

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…

太阳与恒星天体物理 · 物理学 2009-02-17 Dan M. Watson

Angular momentum transport within young massive protoplanetary discs may be dominated by self-gravity at radii where the disk is too weakly ionized to allow the development of the magneto-rotational instability. We use time-dependent…

太阳与恒星天体物理 · 物理学 2011-11-15 W. K. M. Rice , P. J. Armitage

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…

太阳与恒星天体物理 · 物理学 2024-04-23 Yusuke Tsukamoto

Protoplanetary discs contain a wide range of dust sizes that influence their thermal structure and planet formation processes such as planetesimal formation and pebble accretion. Dust evolution models are therefore essential for both planet…

地球与行星天体物理 · 物理学 2026-05-22 Linn E. J. Eriksson , Thomas Pfeil , Nicolas Kaufmann , Vignesh Vaikundaraman

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…

天体物理学 · 物理学 2007-05-23 C. P. Dullemond , D. Hollenbach , I. Kamp , P. D'Alessio

We present cosmological zoom-in hydro-dynamical simulations for the formation of disc galaxies, implementing dust evolution and dust promoted cooling of hot gas. We couple an improved version of our previous treatment of dust evolution,…

In our previous work (Paper I), we demonstrated that coagulation instability results in dust concentration against depletion due to the radial drift and accelerates dust growth locally. In this work (Paper II), we perform numerical…

地球与行星天体物理 · 物理学 2022-12-07 Ryosuke T. Tominaga , Hidekazu Tanaka , Hiroshi Kobayashi , Shu-ichiro Inutsuka

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,…

天体物理学 · 物理学 2009-10-31 Taku Takeuchi , Pawel Artymowicz

Aims. We track the time evolution of planet traps and snowlines in a viscously evolving protoplanetary disk using an opacity table that accounts for the composition of the dust material. Methods. We coupled a dynamical and thermodynamical…

地球与行星天体物理 · 物理学 2015-05-06 Kévin Baillié , Sébastien Charnoz , Éric Pantin

We investigate the formation of dust gaps in circumstellar disks driven by the presence of multiple low-mass planets, focusing on the distinct physical mechanisms that operate across different gas-dust coupling regimes. We performed 2D…

地球与行星天体物理 · 物理学 2025-11-27 V. Roatti , G. Picogna , F. Marzari

Gas and dust in inclined orbits around binaries experience precession induced by the binary gravitational torque. The difference in precession between gas and dust alters the radial drift of weakly coupled dust and leads to density…

地球与行星天体物理 · 物理学 2021-10-13 Hossam Aly , Jean-François Gonzalez , Rebecca Nealon , Cristiano Longarini , Giuseppe Lodato , Daniel J. Price

The temperature and density profiles of protoplanetary discs depend crucially on the mass fraction of micrometre-sized dust grains and on their chemical composition. A larger abundance of micrometre-sized grains leads to an overall heating…

地球与行星天体物理 · 物理学 2016-05-25 Bertram Bitsch , Anders Johansen

The dynamics of dust and gas can be quite different from each other when the dust is poorly coupled to the gas. In protoplanetary discs, it is well known that this decoupling of the dust and gas can lead to diverse spatial structures and…

星系天体物理 · 物理学 2016-11-10 Matthew R. Bate , Pablo Loren-Aguilar

The tidal perturbation of embedded protoplanets on their natal disks has been widely attributed to be the cause of gap-ring structures in sub-mm images of protoplanetary disks around T Tauri stars. Numerical simulations of this process have…

地球与行星天体物理 · 物理学 2021-12-08 Yi-Xian Chen , Zhuoxiao Wang , Ya-Ping Li , Clément Baruteau , Douglas N. C. Lin

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…

星系天体物理 · 物理学 2017-09-27 Eduard I. Vorobyov , Yaroslav N. Pavlyuchenkov

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…

地球与行星天体物理 · 物理学 2022-06-29 Adam S. Jermyn , Mihkel Kama

The temperature in most parts of a protoplanetary disk is determined by irradiation from the central star. Numerical experiments of Watanabe \& Lin (2008) suggested that such disks, also called `passive disks', suffer from a thermal…

地球与行星天体物理 · 物理学 2021-12-22 Yanqin Wu , Yoram Lithwick

Protoplanetary disks can exhibit asymmetric temperature variations due to phenomena such as shadows cast by the inner disk or localized heating by young planets. We investigate the disk features induced by these asymmetric temperature…

地球与行星天体物理 · 物理学 2025-02-26 Zhaohuan Zhu , Shangjia Zhang , Ted Johnson
‹ 上一页 1 8 9 10 下一页 ›