Magnetic Spirals in Accretion Flows Originated from Misaligned Magnetic Field
arXiv:2201.08974 · doi:10.3847/1538-4357/ac4d2e
Abstract
Misalignment between rotation and magnetic field has been suggested to be one type of physical mechanisms which can easen the effects of magnetic braking during collapse of cloud cores leading to formation of protostellar disks. However, its essential factors are poorly understood. Therefore, we perform a more detailed analysis of the physics involved. We analyze existing simulation data to measure the system torques, mass accretion rates and Toomre Q parameters. We also examine the presence of shocks in the system. While advective torques are generally the strongest, we find that magnetic and gravitational torques can play substantial roles in how angular momentum is transferred during the disk formation process. Magnetic torques can shape the accretion flows, creating two-armed magnetized inflow spirals aligned with the magnetic field. We find evidence of an accretion shock that is aligned according to the spiral structure of the system. Inclusion of ambipolar diffusion as explored in this work has shown a slight influence in the small scale structures but not in the main morphology. We discuss potential candidate systems where some of these phenomena could be present.
arXiv comment26 pages, 26 figures, 2 tables, Accepted for publication in the Astrophysical Journal
References in corpus (56)
- SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
- Array Programming with NumPy
- Astropy: A Community Python Package for Astronomy
- Binary companions of evolved stars in APOGEE DR14: Search method and catalog of ~5,000 companions
- 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
- ALMA Survey of Lupus Protoplanetary Disks I: Dust and Gas Masses
- Gravitational Instabilities in Circumstellar Disks
- Gaps and Rings in an ALMA Survey of Disks in the Taurus Star-forming Region
- ALMA Survey of Lupus Protoplanetary Disks II: Gas Disk Radii
- An ALMA Survey of Protoplanetary Disks in the Orionis Cluster
- 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
- Collapse of Magnetized Singular Isothermal Toroids: II. Rotation and Magnetic Braking
- Compact Disks in a High Resolution ALMA Survey of Dust Structures in the Taurus Molecular Cloud
- Disk formation during collapse of magnetized protostellar cores
- Ambipolar diffusion in low-mass star formation. I. General comparison with the ideal MHD case
- A protostellar system fed by a streamer of 10,500 au length
- Can non-ideal magnetohydrodynamics solve the magnetic braking catastrophe?
- Gravitational collapse of magnetized clouds. I. Ideal MHD accretion flow
- Magnetic Braking and Protostellar Disk Formation: Ambipolar Diffusion
- Protostellar Disk Formation Enabled by Removal of Small Dust Grains
- Effects of Ohmic and ambipolar diffusion on the formation and evolution of the first cores, protostars and circumstellar discs
- Does Magnetic Field-Rotation Misalignment Solve the Magnetic Braking Catastrophe in Protostellar Disk Formation?
- An ALMA Survey of CO isotopologue emission from Protoplanetary Disks in Chamaeleon I
- The Ophiuchus DIsc Survey Employing ALMA (ODISEA)-III: the evolution of substructures in massive discs at 3-5 au resolution
- Magnetically self-regulated formation of early protoplanetary discs
- The Perseus ALMA Chemistry Survey (PEACHES). I. The Complex Organic Molecules in Perseus Embedded Protostars
- Protostellar birth with ambipolar and ohmic diffusion
- Gravity Driven Magnetic Field at ~1000 au Scales in High-mass Star Formation
- ALMA survey of Class II protoplanetary disks in Corona Australis: a young region with low disk masses
- A chemical solver to compute molecule and grain abundances and non-ideal MHD resistivities in prestellar core collapse calculations
- The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. III. Substructures in Protostellar Disks
- Disk Formation Enabled by Enhanced Resistivity
- An ALMA Continuum Survey of Circumstellar Disks in the Upper Scorpius OB Association
- Dust Polarization Toward Embedded Protostars in Ophiuchus with ALMA. III. Survey Overview
- ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT) II: Vertical stratification of CO, CS, CN, HCO, and CHOH in a Class I disk
- Testing the Reality of Strong Magnetic Fields on T Tauri Stars: The Naked T Tauri Star Hubble 4
- The first ALMA survey of protoplanetary discs at 3 mm: demographics of grain growth in the Lupus region
- Alma Survey Of Circumstellar Disks In The Young Stellar Cluster IC 348
- ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP) II. Survey overview: a first look at 1.3 mm continuum maps and molecular outflows
- The Carnegie-Irvine Galaxy Survey. VI. Quantifying Spiral Structure
- Simulating hydromagnetic processes in star formation: introducing ambipolar diffusion into an adaptive mesh refinement code
- Magnetic Flux Expulsion in Star Formation
- An ALMA Survey of Protoplanetary Disks in Lynds 1641
- Substructure Formation in a Protostellar Disk of L1527 IRS
- A Pseudodisk Threaded with a Toroidal and Pinched Poloidal Magnetic Field Morphology in the HH 211 Protostellar System
- The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars I. Identifying and Characterizing the Protostellar Content of the OMC2-FIR4 and OMC2-FIR3 Regions
- ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): I. Detection of New Hot Corinos with ACA
- ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Detection of extremely high density compact structure of prestellar cores and multiple substructures within
- An ALMA Survey of faint disks in the Chamaeleon I star-forming region: Why are some Class II disks so faint?
- Resolved molecular line observations reveal an inherited molecular layer in the young disk around TMC1A
- A Tight Relation between Spiral Arm Pitch Angle and Protoplanetary Disk Mass
- Stability of Magnetized Disks and Implications for Planet Formation
- Linear Stability Analysis of a Magnetic Rotating Disk with Ohmic Dissipation and Ambipolar Diffusion
- Time Evolution of 3D Disk Formation with Misaligned Magnetic Field and Rotation Axes