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相关论文: Circumplanetary disk ices. I. Ice formation vs. vi…

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While recent observational progress is converging on the detection of compact regions of thermal emission due to embedded protoplanets, further theoretical predictions are needed to understand the response of a protoplanetary disk to the…

地球与行星天体物理 · 物理学 2015-07-27 Matias Montesinos , Jorge Cuadra , Sebastian Perez , Clement Baruteau , Simon Casassus

The four major satellites of Jupiter, known as the Galilean moons, and Saturn's most massive satellite, Titan, are believed to have formed in a predominantly gaseous circum-planetary disk, during the last stages of formation of their parent…

地球与行星天体物理 · 物理学 2020-01-22 Thomas Ronnet , Anders Johansen

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…

地球与行星天体物理 · 物理学 2021-09-28 Yayaati Chachan , Eve J. Lee , Heather A. Knutson

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

Rings and gaps are commonly observed in the dust continuum emission of young stellar disks. Previous studies have shown that substructures naturally develop in the weakly ionized gas of magnetized, non-ideal MHD disks. The gas rings are…

地球与行星天体物理 · 物理学 2022-07-20 Xiao Hu , Zhi-Yun Li , Zhaohuan Zhu , Chao-Chin Yang

With hundreds of exoplanets detected, it is necessary to revisit giant planets accretion models to explain their mass distribution. In particular, formation of sub-jovian planets remains unclear, given the short timescale for the runaway…

地球与行星天体物理 · 物理学 2015-06-12 Guillaume Rivier , Aurélien Crida , Alessandro Morbidelli , Yann Brouet

The compositions of nascent planets depend on the compositions of their birth disks. In particular, the elemental compositions of Gas Giant gaseous envelopes depend on the elemental composition of the disk gas from which the envelope is…

星系天体物理 · 物理学 2016-11-15 Karin I. Oberg , Edwin A. Bergin

CO is thought to be the main reservoir of volatile carbon in protoplanetary disks, and thus the primary initial source of carbon in the atmospheres of forming giant planets. However, recent observations of protoplanetary disks point towards…

地球与行星天体物理 · 物理学 2019-06-12 Kamber R. Schwarz , Edwin A. Bergin , L. Ilsedore Cleeves , Ke Zhang , Karin I. Öberg , Geoffrey A. Blake , Dana E. Anderson

Models of the formation, evolution and photoevaporation of circumstellar disks are an essential ingredient in many theories of the formation of planetary systems. The ratio of disk mass over stellar mass in the circumstellar phase of a disk…

太阳与恒星天体物理 · 物理学 2015-05-18 R. Visser , C. P. Dullemond

The regular satellites found around Neptune ($\approx 17~M_{\Earth}$) and Uranus ($\approx 14.5~M_{\Earth}$) suggest that past gaseous circumplanetary disks may have co-existed with solids around sub-Neptune-mass protoplanets ($<…

地球与行星天体物理 · 物理学 2015-06-19 Hsiang-Hsu Wang , Defu Bu , Hsien Shang , Pin-Gao Gu

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

The identification of on-going planet formation requires the finest angular resolutions and deepest sensitivities in observations inspired by state-of-the-art numerical simulations. Hydrodynamic simulations of planet-disk interactions…

The formation of gas-giant planets within the lifetime of a protoplanetary disk is challenging especially far from a star. A promising model for the rapid formation of giant-planet cores is pebble accretion in which gas drag during…

地球与行星天体物理 · 物理学 2021-06-30 John Chambers

Recent surveys have revealed that protoplanetary discs typically have dust masses that appear to be insufficient to account for the high occurrence rate of exoplanet systems. We demonstrate that this observed dust depletion is consistent…

地球与行星天体物理 · 物理学 2020-09-30 Johan Appelgren , Michiel Lambrechts , Anders Johansen

We consider the inner $\sim$ AU of a protoplanetary disk (PPD), at a stage where angular momentum transport is driven by the mixing of a radial magnetic field into the disk from a T-Tauri wind. Because the radial profile of the imposed…

地球与行星天体物理 · 物理学 2015-12-23 Matthew Russo , Christopher Thompson

[Abridged] Chemical evolution in the protoplanetary disk midplane can modify the composition of ices and gases. We have investigated if and how chemical evolution affects the abundances and distributions of key volatile species in the…

地球与行星天体物理 · 物理学 2016-11-09 Christian Eistrup , Catherine Walsh , Ewine F. van Dishoeck

We investigate the flow of material from highly misaligned and polar circumbinary discs that feed the formation of circumstellar discs around each binary component. With three-dimensional hydrodynamic simulations we consider equal mass…

地球与行星天体物理 · 物理学 2023-02-08 Jeremy L. Smallwood , Rebecca G. Martin , Stephen H. Lubow

The radial drift and diffusion of dust particles in protoplanetary disks affect both the opacity and temperature of such disks as well as the location and timing of planetesimal formation. In this paper, we present results of numerical…

地球与行星天体物理 · 物理学 2018-10-17 Noemi Schaffer , Chao-Chin Yang , Anders Johansen

We study the structure and dynamics of the gap created by a protoplanet in an accretion disc. The hydrodynamic equations for a flat, two-dimensional, non-selfgravitating protostellar accretion disc with an embedded, Jupiter sized…

天体物理学 · 物理学 2010-03-01 Willy Kley

The birth process of circumstellar disks remains poorly constrained due to observational and numerical challenges. Recent numerical works have shown that the small-scale physics, often wrapped into a sub-grid model, play a crucial role in…

太阳与恒星天体物理 · 物理学 2024-07-03 Adnan Ali Ahmad , Matthias González , Patrick Hennebelle , Benoît Commerçon