Impact of turbulence intensity and fragmentation velocity on dust particle size evolution and non-ideal magnetohydrodynamics effects

Abstract

We investigate the influence of dust particle size evolution on non-ideal magnetohydrodynamic effects during the collapsing phase of star-forming cores, taking both the turbulence intensity in the collapsing cloud core and the fragmentation velocity of dust particles as parameters. When the turbulence intensity is small, the dust particles do not grow significantly, and the non-ideal MHD effects work efficiently in high-density regions. The dust particles rapidly grow in a strongly turbulent environment, while the efficiency of non-ideal MHD effects in such an environment depends on the fragmentation velocity of the dust particles. When the fragmentation velocity is small, turbulence promotes coagulation growth and collisional fragmentation of dust particles, producing small dust particles. In this case, the adsorption of charged particles on the dust particle surfaces becomes efficient and the abundance of charged particles decreases, making non-ideal MHD effects effective at high densities. On the other hand, when the fragmentation velocity is high, dust particles are less likely to fragment, even if the turbulence is strong. In this case, the production of small dust particles become inefficient and non-ideal MHD effects become less effective. We also investigate the effect of the dust composition on the star and disk formation processes. We constrain the turbulence intensity of a collapsing core and the fragmentation velocity of dust for circumstellar disk formation due to the dissipation of the magnetic field.

Accepted for publication in MNRAS. 15 pages, 13 figures

References in corpus (33)

• Gas- and dust evolution in protoplanetary disks
• Closed-form expressions for particle relative velocities induced by turbulence
• Magnetic Braking and Protostellar Disk Formation: The Ideal MHD Limit
• A Triple Protostar System Formed via Fragmentation of a Gravitationally Unstable Disk
• Radiation Magnetohydrodynamic Simulations of Protostellar Collapse: Non-Ideal Magnetohydrodynamic Effects and Early Formation of Circumstellar Disks
• Signs of Early-Stage Disk Growth Revealed with ALMA
• Magnetic Fields and Rotations of Protostars
• Effects of Ohmic and ambipolar diffusion on the formation and evolution of the first cores, protostars and circumstellar discs
• The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. III. Substructures in Protostellar Disks
• The Physics of Protoplanetesimal Dust Agglomerates II. Low Velocity Collision Properties
• "Ash-fall" induced by molecular outflow in protostar evolution
• Protostellar collapse: the conditions to form dust rich protoplanetary disks
• Protostellar collapse simulations in spherical geometry with dust coagulation and fragmentation
• On the dynamics of dust during protostellar collapse
• How large are the monomers of dust aggregates in planet-forming disks?: Insights from quantitative optical and near-infrared polarimetry
• Formation and evolution of protostellar accretion discs. II. From 3D simulation to a simple semi-analytic model of Class 0/I discs
• Small dust grain dynamics on adaptive mesh-refinement grids. I. Methods
• Formation and evolution of protostellar accretion discs. I. Angular-momentum budget, gravitational self-regulation, and numerical convergence
• Collisional Growth and Fragmentation of Dust Aggregates with Low Mass Ratios. I: Critical Collision Velocity for Water Ice
• The impact of non-ideal magnetohydrodynamic processes on discs, outflows, counter-rotation and magnetic walls during the early stages of star formation
• Evolution of dust in protoplanetary disks of eruptive stars
• Dependence of Hall Coefficient on Grain Size and Cosmic Ray Rate and Implication for Circumstellar Disk Formation
• Fast methods for tracking grain coagulation and ionization. I. Analytic derivation
• Do we need non-ideal magnetohydrodynamics to model protostellar discs?
• Dust growth, fragmentation and self-induced dust traps in PHANTOM
• Amplification of turbulence in contracting prestellar cores in primordial minihalos
• Impact of the Hall effect in star formation : improving the angular momentum conservation
• Dust coagulation and fragmentation in a collapsing cloud core and their influence on non-ideal magnetohydrodynamic effects
• Conditions for justifying single-fluid approximation for charged and neutral dust fluids and a smoothed particle magnetohydrodynamics method for dust-gas mixture
• Impact of dust size distribution including large dust grains on magnetic resistivity: an analytical approach
• Grain Growth During Protostellar Disk Formation
• Implementation of dust particles in three-dimensional magnetohydrodynamics simulation: Dust dynamics in a collapsing cloud core
• Dust Motion and Possibility of Dust Growth in a Growing Circumstellar Disk

Cited by in corpus (7)

• Dust Coagulation Reconciles Protoplanetary Disk Observations with the Vertical Shear Instability. I. Dust Coagulation and the VSI Dead Zone
• Mixing is easy: New insights for cosmochemical evolution from pre-stellar core collapse
• Formation of low mass protostars and their circumstellar disks
• Dust evolution during the protostellar collapse: influence on the coupling between the neutral gas and the magnetic field
• Birth of magnetized low-mass protostars and circumstellar disks
• Survey of Orion Disks with ALMA (SODA) III: Disks in wide binary systems in L1641 and L1647
• Numerical Insights into Disk Accretion, Eccentricity, and Kinematics in the Class 0 phase