Formation and evolution of protostellar accretion discs. I. Angular-momentum budget, gravitational self-regulation, and numerical convergence

Abstract

We investigate the formation and early evolution of a protostellar disc from a magnetized pre-stellar core using non-ideal magnetohydrodynamic (MHD) simulations including ambipolar diffusion and Ohmic dissipation. The dynamical contraction of the pre-stellar core ultimately leads to the formation of a first hydrostatic core, after ambipolar diffusion decouples the magnetic field from the predominantly neutral gas. The hydrostatic core accumulates angular momentum from the infalling material, evolving into a rotationally supported torus; this `first hydrostatic torus' then forms an accreting protostar and a rotationally supported disc. The disc spreads out by gravitational instability, reaching $\sim$30 au in diameter at $\sim$3 kyr after protostar formation. The total mass and angular momentum of the protostar-disc system are determined mainly by accretion of gas from an infalling pseudo-disc, which has low specific angular momentum because of magnetic braking; their removal from the protostar-disc system by outflow and disc magnetic braking are negligible, in part because the magnetic field is poorly coupled there. The redistribution of angular momentum within the protostar-disc system is facilitated mainly by gravitational instability; this allows formation of relatively large discs even when the specific angular momentum of infalling material is low. We argue that such discs should remain marginally unstable as they grow (with Toomre $Q\sim 1$-$2$), an idea that is broadly consistent with recent observational estimates for Class 0/I discs. We discuss the numerical convergence of our results, and show that properly treating the inner boundary condition is crucial for achieving convergence at an acceptable computational cost.

arXiv comment20 pages, 21 figures; accepted by MNRAS

References in corpus (69)

• The Disk Substructures at High Angular Resolution Project (DSHARP): I. Motivation, Sample, Calibration, and Overview
• Nonlinear Outcome of Gravitational Instability in Cooling, Gaseous Disks
• The Mass Dependence Between Protoplanetary Disks and their Stellar Hosts
• Dense Cores in Dark Clouds. XIV. N2H+(1-0) maps of dense cloud cores
• ALMA Survey of Lupus Protoplanetary Disks I: Dust and Gas Masses
• Gravitational Instabilities in Circumstellar Disks
• High Resolution Submillimeter Constraints on Circumstellar Disk Structure
• Magnetic Fields in the Formation of Sun-Like Stars
• ALMA Survey of Lupus Protoplanetary Disks II: Gas Disk Radii
• On the diversity and statistical properties of protostellar discs
• The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. A Statistical Characterization of Class 0 and I Protostellar Disks
• Protostellar disk formation and transport of angular momentum during magnetized core collapse
• Dust coagulation and fragmentation in molecular clouds. I. How collisions between dust aggregates alter the dust size distribution
• SCUBA Polarization Measurements of the Magnetic Field Strengths in the L183, L1544, and L43 Prestellar Cores
• The conductivity of dense molecular gas
• The initial conditions of isolated star formation - VI. SCUBA mapping of prestellar cores
• Ambipolar diffusion in low-mass star formation. I. General comparison with the ideal MHD case
• Radiation Magnetohydrodynamic Simulations of Protostellar Collapse: Non-Ideal Magnetohydrodynamic Effects and Early Formation of Circumstellar Disks
• Nonideal MHD Effects and Magnetic Braking Catastrophe in Protostellar Disk Formation
• A census of dense cores in the Aquila cloud complex: SPIRE/PACS observations from the Herschel Gould Belt survey
• First Observations of the Magnetic Field Geometry in Pre-stellar Cores
• Resolved images of a protostellar outflow launched by an extended disk wind
• Signs of Early-Stage Disk Growth Revealed with ALMA
• Conditions for Circumstellar Disk Formation: Effects of Initial Conditions and Sink Treatment
• Evolution of Protostellar Outflow around Low-mass Protostar
• Does Magnetic Field-Rotation Misalignment Solve the Magnetic Braking Catastrophe in Protostellar Disk Formation?
• Bridging the gap: disk formation in the Class 0 phase with ambipolar diffusion and Ohmic dissipation
• The influence of turbulence during magnetized core collapse and its consequences on low-mass star formation
• Bimodality of circumstellar disk evolution induced by Hall current
• Magnetically regulated collapse in the B335 protostar ? I. ALMA observations of the polarized dust emission
• Decoupling of Magnetic Fields in Collapsing Protostellar Envelopes and Disk Formation and Fragmentation
• Star Formation and the Hall Effect
• Disc formation in turbulent massive cores: Circumventing the magnetic braking catastrophe
• Grand Design Spiral Arms in A Young Forming Circumstellar Disk
• Dust growth in the interstellar medium: How do accretion and coagulation interplay?
• Disk Formation in Magnetized Clouds Enabled by the Hall Effect
• A chemical solver to compute molecule and grain abundances and non-ideal MHD resistivities in prestellar core collapse calculations
• There is no magnetic braking catastrophe: Low-mass star cluster and protostellar disc formation with non-ideal magnetohydrodynamics
• The VLA Nascent Disk and Multiplicity Survey of Perseus Protostars (VANDAM). V. 18 Candidate Disks around Class 0 and I Protostars in the Perseus Molecular Cloud
• What determines the formation and characteristics of protoplanetary discs?
• Faint disks around classical T Tauri stars: small but dense enough to form planets?
• Formation and Evolution of Disks around Young Stellar Objects
• Dust Polarization Toward Embedded Protostars in Ophiuchus with ALMA. III. Survey Overview
• Self-regulated gravitational accretion in protostellar discs
• The nonisothermal stage of magnetic star formation. II. Results
• The First Detection of 13C17O in a Protoplanetary Disk: a Robust Tracer of Disk Gas Mass
• Magnetically Controlled Spasmodic Accretion During Star Formation. II. Results
• The Hall effect in star formation
• Dynamical Collapse of Nonrotating Magnetic Molecular Cloud Cores: Evolution Through Point-Mass Formation
• Effect of Grain Size on Differential Desorption of Volatile Species and on Non-ideal MHD Diffusivity
• New Constraints From Dust Lines On The Surface Densities Of Protoplanetary Disks
• The First Two Thousand Years of Star Formation
• The Nonisothermal Stage of Magnetic Star Formation. I. Formulation of the Problem and Method of Solution
• From Dusty Filaments to Cores to Stars: An Infrared Extinction Study of Lupus 3
• Protostar Formation in Magnetic Molecular Clouds beyond Ion Detachment: II. Typical Axisymmetric Solution
• Protostellar collapse: the conditions to form dust rich protoplanetary disks
• The Effect of Misalignment between Rotation Axis and Magnetic Field on Circumstellar Disk
• Dust coagulation feedback on magnetohydrodynamic resistivities in protostellar collapse
• 13C17O suggests gravitational instability in the HL Tau disc
• On the Effects of Self-Obscuration in the (Sub-)Millimeter Spectral Indices and Appearance of Protostellar Disks
• Gravitoviscous protoplanetary disks with a dust component. I. The importance of the inner sub-au region
• Does misalignment between magnetic field and angular momentum enhance or suppress circumstellar disk formation?
• Hall Effect in Protostellar Disc Formation and Evolution
• Gravito-turbulence and the excitation of small-scale parametric instability in astrophysical discs
• The Mass Evolution of Protostellar Disks and Envelopes in the Perseus Molecular Cloud
• Protostellar disk formation by a non-rotating, non-axisymmetric collapsing cloud: model and comparison with observations
• Different Modes of Star Formation II: Gas Accretion Phase of Initially Subcritical Star-Forming Clouds
• Magnetic Field Structure of Dense Cores using Spectroscopic Methods
• Constraining the Chemical Signatures and the Outburst Mechanism of the Class 0 Protostar HOPS 383

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• Revisiting collisional dust growth in Class 0/I protostellar disks: Sweep-up can convert a few $10M_{\oplus }$ of dust into kg pebbles in 0.1 Myr
• Growth of Magnetorotational Instability in Circumstellar Disks around Class 0 Protostars
• Dust Motion and Possibility of Dust Growth in a Growing Circumstellar Disk
• Filling in the Gaps: Can Gravitationally Unstable Discs Form the Seeds of Gas Giant Planets?
• Impact of turbulence intensity and fragmentation velocity on dust particle size evolution and non-ideal magnetohydrodynamics effects
• Magnetic disk winds in protoplanetary disks: Description of the model and impact on global disk evolution
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• Gravito-turbulence and dynamo in poorly ionised protostellar discs. I. Zero-net-flux case
• Fragmentation of Dense Rotation-Dominated Structures Fed by Collapsing Gravomagneto-Sheetlets and Origin of Misaligned 100 au-Scale Binaries and Multiple Systems
• How Does a Protostar Form by Magnetized Gravitational Collapse?
• The evolution of the $M_{\mathrm{d}}-M_{\star }$ and $\dot{M}-M_{\star }$ correlations traces protoplanetary disc dispersal
• Can High-velocity Protostellar Jets Help to Drive Low-velocity Outflow?
• The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars VI. Insights from Radiative Transfer Modeling