Primordial dust rings, hidden dust mass, and the first generation of planetesimals in gravitationally unstable protoplanetary disks

Abstract

Aims. A new mechanism of dust accumulation and planetesimal formation in a gravitationally unstable disk with suppressed magnetorotational instability is studied and compared with the classical dead zone in a layered disk model. Methods. We use numerical hydrodynamics simulations in the thin-disk limit FEOSAD code to model the formation and long-term evolution of gravitationally unstable disks, including dust dynamics and growth. Results. We found that in gravitationally unstable disks with a radially varying strength of gravitational instability a region of low mass and angular momentum transport forms in the inner several astronomical units. This region is characterized by low effective α_GI and is similar in characteristics to the dead zone in the layered disk model. As the disk forms and evolves, the GI-induced dead zone accumulates a massive dust ring, which is susceptible to the development of the streaming instability. The model and observationally inferred dust masses and radii may differ significantly in gravitationally unstable disks with massive inner dust rings. Conclusions. The early occurrence of the GI-induced dust ring followed by the presumed development of the streaming instability suggest that this mechanism may form the first generation of planetesimals in the inner terrestrial zone of the disk. The proposed mechanism, however, crucially depends on the susceptibility of the disk to gravitational instability and requires that the magnetorotational instability be suppressed.

Accepted for publication in Astronomy & Astrophysics

References in corpus (94)

• Dust Grain Size Distributions and Extinction in the Milky Way, LMC, and SMC
• Streaming Instabilities in Protoplanetary Disks
• First Results from High Angular Resolution ALMA Observations Toward the HL Tau Region
• The Disk Substructures at High Angular Resolution Project (DSHARP): I. Motivation, Sample, Calibration, and Overview
• A simple model for the evolution of the dust population in protoplanetary disks
• Dense Cores in Dark Clouds. XIV. N2H+(1-0) maps of dense cloud cores
• Gravitational Instabilities in Circumstellar Disks
• Gaps and Rings in an ALMA Survey of Disks in the Taurus Star-forming Region
• Wind-driven Accretion in Protoplanetary Disks. I: Suppression of the Magnetorotational Instability and Launching of the Magnetocentrifugal Wind
• The Disk Substructures at High Angular Resolution Project (DSHARP): VII. The Planet-Disk Interactions Interpretation
• Gaps, Rings, and Non-Axisymmetric Structures in Protoplanetary Disks - From Simulations to ALMA Observations
• Consistent dust and gas models for protoplanetary disks. I. Disk shape, dust settling, opacities, and PAHs
• Trapping dust particles in the outer regions of protoplanetary disks
• Disks ARound TTauri Stars with Sphere (DARTTS-S) I: Sphere / IRDIS Polarimetric Imaging of 8 prominent TTauri Disks
• Spiral Density Waves in a Young Protoplanetary Disk
• Evidence of fast pebble growth near condensation fronts in the HL Tau protoplanetary disk
• Episodic accretion in magnetically layered protoplanetary discs
• Dust filtration at gap edges: Implications for the spectral energy distributions of discs with embedded planets
• The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. A Statistical Characterization of Class 0 and I Protostellar Disks
• Concentrating small particles in protoplanetary disks through the streaming instability
• Sintering-induced Dust Ring Formation in Protoplanetary Disks: Application to the HL Tau Disk
• Observational Signatures of Planets in Protoplanetary Disks I: Gaps Opened by Single and Multiple Young Planets in Disks
• Dust Evolution and the Formation of Planetesimals
• The Origin of Episodic Accretion Bursts in the Early Stages of Star Formation
• Global simulations of protoplanetary disks with ohmic resistivity and ambipolar diffusion
• Formation of Primordial Supermassive Stars by Rapid Mass Accretion
• Planetesimal formation starts at the snow line
• A Triple Protostar System Formed via Fragmentation of a Gravitationally Unstable Disk
• The chemical history of molecules in circumstellar disks. I. Ices
• Why do protoplanetary disks appear not massive enough to form the known exoplanet population?
• Close-in planetesimal formation by pile-up of drifting pebbles
• Characterising the Gravitational Instability in Cooling Accretion Discs
• Variable protostellar accretion with episodic bursts
• Trapping Solids at the Inner Edge of the Dead Zone: 3-D Global MHD Simulations
• Two-Component Secular Gravitational Instability in a Protoplanetary Disk: A Possible Mechanism for Creating Ring-Like Structures
• 2-D simulations of FU Orionis disk outbursts
• The Disk Substructures at High Angular Resolution Project (DSHARP): III. Spiral Structures in the Millimeter Continuum of the Elias 27, IM Lup, and WaOph 6 Disks
• Type I planetary migration in a self-gravitating disk
• Thresholds for Particle Clumping by the Streaming Instability
• Protoplanetary disk rings and gaps across ages and luminosities
• Modeling Magnetorotational Turbulence in Protoplanetary Disks with Dead Zones
• High-resolution simulations of planetesimal formation in turbulent protoplanetary discs
• Dust evolution in protoplanetary discs and the formation of planetesimals. What have we learned from laboratory experiments?
• Treating gravity in thin disk simulations
• Conditions for Circumstellar Disk Formation: Effects of Initial Conditions and Sink Treatment
• A highly settled disk around Oph 163131
• Dust Density Distribution and Imaging Analysis of Different Ice Lines in Protoplanetary Disks
• Decoupling of Magnetic Fields in Collapsing Protostellar Envelopes and Disk Formation and Fragmentation
• Time-dependent models of the structure and evolution of self-gravitating protoplanetary discs
• Accretion Outbursts in Self-gravitating Protoplanetary Disks
• Empirical constraints on turbulence in proto-planetary discs
• Secular evolution of viscous and self-gravitating circumstellar discs
• The efficiency of dust trapping in ringed proto-planetary discs
• Protoplanetary disc `isochrones' and the evolution of discs in the $\dot{M}-M_{\mathrm{d}}$ plane
• The early evolution of viscous and self-gravitating circumstellar disks with a dust component
• On the origin of the spiral morphology in the Elias 2-27 circumstellar disc
• Streaming Instability in Turbulent Protoplanetary Disks
• Estimate on dust scale height from ALMA dust continuum image of the HD 163296 protoplanetary disk
• On the reliability of protostellar disc mass measurements and the existence of fragmenting discs
• Evolution of dust and ice features around FU Orionis objects
• Ring formation and dust dynamics in wind-driven protoplanetary discs: global simulations
• Dust-driven viscous ring-instability in protoplanetary disks
• How Bright are Planet-Induced Spiral Arms in Scattered Light?
• How do giant planetary cores shape the dust disk? HL Tau system
• Early Planet Formation in Embedded Disks (eDisk). II. Limited Dust Settling and Prominent Snow Surfaces in the Edge-on Class I Disk IRAS 04302+2247
• Embedded protostellar disks around (sub-)solar stars. II. Disk masses, sizes, densities, temperatures and the planet formation perspective
• Toroidal vortices and the conglomeration of dust into rings in protoplanetary discs
• Outbursts in Global Protoplanetary Disk Simulations
• The asymmetric inner disk of the Herbig Ae star HD 163296 in the eyes of VLTI/MATISSE: evidence for a vortex?
• The Streaming Instability Cannot Form Planetesimals from mm-size Grains in Pressure Bumps
• Massive compact disks around FU Orionis-type young eruptive stars revealed by ALMA
• Dynamical Gaseous Rings in Global Simulations of Protoplanetary Disk Formation
• Accretion bursts in magnetized gas-dust protoplanetary disks
• Magnetorotational instability and dynamo action in gravitoturbulent astrophysical discs
• Evolution of dust in protoplanetary disks of eruptive stars
• How does disk gravity really influence type-I migration ?
• Simulating the Complexity of the Dark Matter Sheet I: Numerical Algorithms
• Simulations of Dynamical Gas-Dust Circumstellar Disks: Going Beyond the Epstein Regime
• 2-D models of layered protoplanetary discs: I. The ring instability
• Accurate numerical potential and field in razor-thin axisymmetric discs
• Gravitoviscous protoplanetary disks with a dust component. V. The dynamic model for freeze-out and sublimation of volatiles
• Particle Dynamics in 3D Self-gravitating Disks II: Strong Gas Accretion and Thin Dust Disks
• Dust dynamics and vertical settling in gravitoturbulent protoplanetary discs
• Thermal evolution of protoplanetary disks: from $\beta$-cooling to decoupled gas and dust temperatures
• The effect of luminosity outbursts on the protoplanetary disk dynamics
• Time-dependent, long-term hydrodynamic simulations of the inner protoplanetary disk I: The importance of stellar magnetic torques
• Formation of pebbles in (gravito-)viscous protoplanetary disks with various turbulent strengths
• Primordial Dusty Rings and Episodic Outbursts in Protoplanetary Discs
• The applicability of the viscous α-parameterization of gravitational instability in circumstellar disks
• A local prescription for the softening length in self-gravitating gaseous discs
• The Newtonian potential of thin disks
• Computing the gravitational potential on nested meshes using the convolution method
• Self-gravity in thin-disc simulations of protoplanetary discs: smoothing length rectified and generalised to bi-fluids
• A truly Newtonian softening length for disc simulations

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