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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…

地球与行星天体物理 · 物理学 2026-01-06 D. Tarczay-Nehéz

Despite many methods developed to find young massive planets in protoplanetary discs, it is challenging to directly detect low-mass planets that are embedded in discs. On the other hand, the core-accretion theory suggests that there could…

地球与行星天体物理 · 物理学 2022-10-05 Zhaohuan Zhu , Avery Bailey , Enrique Macías , Takayuki Muto , Sean M. Andrews

We present the results of hydrodynamic simulations of the formation and subsequent orbital evolution of giant planets embedded in a circumbinary disc. We assume that a 20 earth masses core has migrated to the edge of the inner cavity formed…

天体物理学 · 物理学 2009-11-13 Arnaud Pierens , Richard P. Nelson

Debris disks are the dust disks found around ~20% of nearby main sequence stars in far-IR surveys. They can be considered as descendants of protoplanetary disks or components of planetary systems, providing valuable information on…

地球与行星天体物理 · 物理学 2018-12-05 Mark C. Wyatt

It has been suggested that the gaps and cavities recently discovered in transitional disks are opened by planets. To explore this scenario, we combine two-dimensional two fluid (gas + particle) hydrodynamical calculations with…

地球与行星天体物理 · 物理学 2015-08-19 Ruobing Dong , Zhaohuan Zhu , Barbara Whitney

We present deep 1.2 millimeter photometry of 37 stars in the young (5 Myr) Upper Scorpius OB association, sensitive to ~4 x 10^-3 Mjup of cool millimeter dust. Disks around four low- and solar-mass stars are detected, as well as one debris…

太阳与恒星天体物理 · 物理学 2015-06-03 Geoffrey S. Mathews , Jonathan P. Williams , Francois Ménard , Neil Phillips , Gaspard Duchêne , Christophe Pinte

Recent detailed observations of protoplanetary discs revealed a lot of sub-structures which are mostly ring-like. One interpretation is that these rings are caused by growing planets. These potential planets are not yet opening very deep…

地球与行星天体物理 · 物理学 2019-07-17 Nelson Ndugu , Bertram Bitsch , Edward Jurua

(Abridged) We present global disc and local shearing box simulations of planets interacting with a MHD turbulent disc. We examine the torque exerted by the disc on the embedded planets as a function of planet mass, and thus make a first…

天体物理学 · 物理学 2008-11-26 Richard P. Nelson , John C. B. Papaloizou

We present a series of calculations aimed at examining how an inner system of planetesimals/protoplanets, undergoing terrestrial planet formation, evolves under the influence of a giant planet undergoing inward type II migration through the…

天体物理学 · 物理学 2008-11-26 Martyn J. Fogg , Richard P. Nelson

The physical and chemical conditions in young protoplanetary disks set the boundary conditions for planet formation. Although the dust in disks is relatively easily detected as a far-IR photometric ``excess'' over the expected photospheric…

星系天体物理 · 物理学 2015-05-14 Javier R. Goicoechea , Bruce Swinyard

Protoplanetary discs in the Upper Scorpius star-forming region are excellent laboratories to investigate late stages of planet formation. In this work, we analyse the morphology of the dust continuum emission of 121 discs from an ALMA Band…

We present the results of hydrodynamic simulations of the growth and orbital evolution of giant planets embedded in a protoplanetary disk with a dead-zone. The aim is to examine to what extent the presence of a dead-zone affects the rates…

地球与行星天体物理 · 物理学 2015-05-19 Arnaud Pierens , Richard P. Nelson

The presence of distant protoplanets may explain the observed gaps in the dust emission of protoplanetary disks. Here, we derive a novel analytical model to describe the temporal decay of the pebble flux through a protoplanetary disk as the…

地球与行星天体物理 · 物理学 2024-02-07 Nerea Gurrutxaga , Anders Johansen , Michiel Lambrechts , Johan Appelgren

We present a numerical study of rapid, so called type III migration for Jupitersized planets embedded in a protoplanetary disc. We limit ourselves to the case of inward migration, and study in detail its evolution and physics, concentrating…

天体物理学 · 物理学 2009-11-13 A. Peplinski , P. Artymowicz , G. Mellema

From the survival of dust disks for a few Myr to the establishment of chemical dichotomy, dust traps are expected to play a pivotal role in sculpting protoplanetary disks and the early planet formation process. These traps however may not…

地球与行星天体物理 · 物理学 2025-05-27 Pinghui Huang , Fangyuan Yu , Eve J. Lee , Ruobing Dong , Xue-Ning Bai

Recent Atacama Large Millimeter and Submillimeter Array (ALMA) observations of the protoplanetary disk around the Herbig Ae star HD 163296 revealed three depleted dust gaps at 60, 100 and 160 au in the 1.3 mm continuum as well as CO…

地球与行星天体物理 · 物理学 2018-07-24 Shang-Fei Liu , Sheng Jin , Shengtai Li , Andrea Isella , Hui Li

Recent high angular resolution observations of protoplanetary disks at different wavelengths have revealed several kinds of structures, including multiple bright and dark rings. Embedded planets are the most used explanation for such…

地球与行星天体物理 · 物理学 2017-08-23 P. Pinilla , A. Pohl , S. M. Stammler , T. Birnstiel

Gap-opening planets can generate dust-trapping vortices that may explain some of the latest discoveries of high-contrast crescent-shaped dust asymmetries in transition discs. While planet-induced vortices were previously thought to have…

地球与行星天体物理 · 物理学 2018-11-07 Michael Hammer , Paola Pinilla , Kaitlin M. Kratter , Min-Kai Lin

The evolution of protoplanetary discs embedded in stellar clusters depends on the age and the stellar density in which they are embedded. Stellar clusters of young age and high stellar surface density destroy protoplanetary discs by…

地球与行星天体物理 · 物理学 2017-12-20 Nelson Ndugu , Bertram Bitsch , Edward Jurua

Disc winds and planet formation are considered to be two of the most important mechanisms that drive the evolution and dispersal of protoplanetary discs and in turn define the environment in which planets form and evolve. While both have…

地球与行星天体物理 · 物理学 2022-10-20 Michael L. Weber , Barbara Ercolano , Giovanni Picogna , Christian Rab