Magnetic processes in a collapsing dense core. I Accretion and Ejection

Abstract

Abridged. It is important for the star formation process to understand the collapse of a prestellar dense core. We investigate the effect of the magnetic field during the first collapse up to the formation of the firstcore, focusing particularly on the magnetic braking and the launching of outflows. We perform 3D AMR high resolution numerical simulations of a magnetically supercritical collapsing dense core using the RAMSES MHD code and develop semi-analytical models that we compare with the numerical results. We study in detail the various profiles within the envelope of the collapsing core for various magnetic field strengths. Even modest values of magnetic field strength modify the collapse significantly. This is largely due to the amplification of the radial and toroidal components of the magnetic field by the differential motions within the collapsing core. For a weak magnetic intensity corresponding to an initial mass-to-flux over critical mass-to-flux ratio, $\mu$ equals to 20, a centrifugally supported disk forms. The strong differential rotation triggers the growth of a slowly expanding magnetic tower. For a higher magnetic field strengths corresponding to $\mu =2$, the collapse occurs primarily along the field lines, therefore delivering weaker angular momentum in the inner part whereas at the same time, strong magnetic braking occurs. As a consequence no centrifugally supported disk forms. An outflow is launched from the central thermally supported core. Detailed comparisons with existing analytical predictions indicate that it is magneto-centrifugally driven. For cores having a mass-to-flux over critical mass-to-flux radio $\mu <5$, the magnetic field appears to have a significant impact.....

Accepted for publication in A&A

References in corpus (21)

• Cosmological Hydrodynamics with Adaptive Mesh Refinement: a new high resolution code called RAMSES
• A High Order Godunov Scheme with Constrained Transport and Adaptive Mesh Refinement for Astrophysical MHD
• Collapse of Magnetized Singular Isothermal Toroids: II. Rotation and Magnetic Braking
• PROSAC: A Submillimeter Array Survey of Low-Mass Protostars. I. Overview of Program: Envelopes, Disks, Outflows and Hot Cores
• The impact of magnetic fields on single and binary star formation
• Outflows and Jets from Collapsing Magnetized Cloud Cores
• SCUBA Polarization Measurements of the Magnetic Field Strengths in the L183, L1544, and L43 Prestellar Cores
• On Why Disks Generate Magnetic Towers and Collimate Jets
• Magnetized Accretion-Ejection Structures: 2.5D MHD simulations of continuous Ideal Jet launching from resistive accretion disks
• Magnetic processes in a collapsing dense core. II Fragmentation. Is there a fragmentation crisis ?
• Molecular line study of the very young protostar IRAM 04191 in Taurus: Infall, rotation, and outflow
• Collapse-Driven Outflow in Star-Forming Molecular Cores
• Collapse and Fragmentation of Rotating Magnetized Clouds. I. Magnetic Flux - Spin Relation
• Second Core Formation and High Speed Jets: Resistive MHD Nested Grid Simulations
• Envelope Emission in Young Stellar Systems: A Sub-Arcsecond Survey of Circumstellar Structure
• Self-similar Collapse of Rotating Magnetic Molecular Cloud Cores
• Protostellar Collapse Induced by Compression
• Temporal evolution of magnetic molecular shocks I. Moving grid simulations
• Gravitational Collapse of Filamentary Magnetized Molecular Clouds
• Embedded, Self-Gravitating Equilibria in Sheetlike and Filamentary Molecular Clouds
• Self-similar condensation of rotating magnetized self-gravitating isothermal filaments

Cited by in corpus (208)

• Magnetic fields of non-degenerate stars
• Our astrochemical heritage
• Stellar, Brown Dwarf, and Multiple Star Properties from Hydrodynamical Simulations of Star Cluster Formation
• Outflow Feedback Regulated Massive Star Formation in Parsec-Scale Cluster Forming Clumps
• 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
• Magnetohydrodynamics on an unstructured moving grid
• The Importance of Radiative Feedback for the Stellar Initial Mass Function
• A 0.2 solar mass protostar with a Keplerian disk in the very young L1527 IRS system
• Magnetic Braking and Protostellar Disk Formation: The Ideal MHD Limit
• H II regions: Witnesses to massive star formation
• Radiation Magnetohydrodynamic Simulations of Protostellar Collapse: Protostellar Core Formation
• The Interplay of Magnetic Fields, Fragmentation and Ionization Feedback in High-Mass Star Formation
• Disk formation during collapse of magnetized protostellar cores
• The First Magnetic Fields
• Ambipolar diffusion in low-mass star formation. I. General comparison with the ideal MHD case
• Limiting Accretion onto Massive Stars by Fragmentation-Induced Starvation
• Magneto-thermal Disk Wind from Protoplanetary Disks
• Collapse, outflows and fragmentation of massive, turbulent and magnetized prestellar barotropic cores
• Nonideal MHD Effects and Magnetic Braking Catastrophe in Protostellar Disk Formation
• The Fragmentation of Magnetized, Massive Star-Forming Cores with Radiative Feedback
• Small-scale dynamo action during the formation of the first stars and galaxies. I. The ideal MHD limit
• Modeling jet and outflow feedback during star cluster formation
• Magnetic processes in a collapsing dense core. II Fragmentation. Is there a fragmentation crisis ?
• Analytical theory for the initial mass function: II. Properties of the flow
• Accurate, Meshless Methods for Magneto-Hydrodynamics
• Characterizing young protostellar disks with the CALYPSO IRAM-PdBI survey: large Class 0 disks are rare
• Effect of Magnetic Braking on the Circumstellar Disk Formation in a Strongly Magnetized Cloud
• Toward understanding the formation of multiple systems - A pilot IRAM-PdBI survey of Class 0 objects
• Can non-ideal magnetohydrodynamics solve the magnetic braking catastrophe?
• Protostellar collapse: radiative and magnetic feedbacks on small scale fragmentation
• Recurrent Planet Formation and Intermittent Protostellar Outflows Induced by Episodic Mass Accretion
• Radiation hydrodynamics with Adaptive Mesh Refinement and application to prestellar core collapse. I Methods
• Magnetic Braking and Protostellar Disk Formation: Ambipolar Diffusion
• Local outflows from turbulent accretion disks
• Protostellar Disk Formation Enabled by Removal of Small Dust Grains
• Collapse of a molecular cloud core to stellar densities: stellar core and outflow formation in radiation magnetohydrodynamics simulations
• Magnetic fields during the early stages of massive star formation - I. Accretion and disk evolution
• Protostars: Forges of cosmic rays?
• Effects of Ohmic and ambipolar diffusion on the formation and evolution of the first cores, protostars and circumstellar discs
• Evolution of Protostellar Outflow around Low-mass Protostar
• Does Magnetic Field-Rotation Misalignment Solve the Magnetic Braking Catastrophe in Protostellar Disk Formation?
• Formation Scenario for Wide and Close Binary Systems
• First results from BISTRO -- a SCUBA-2 polarimeter survey of the Gould Belt
• CO outflows from high-mass Class 0 protostars in Cygnus-X
• Grain growth in the envelopes and disks of Class I protostars
• 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
• Turbulence-induced disc formation in strongly magnetised cloud cores
• Emergence of Protoplanetary Disks and Successive Formation of Gaseous Planets by Gravitational Instability
• Star Cluster Formation in Turbulent, Magnetized Dense Clumps with Radiative and Outflow Feedback
• Magnetically self-regulated formation of early protoplanetary discs
• Zoom-Simulations of Protoplanetary Disks starting from GMC scales
• The role of turbulent magnetic reconnection on the formation of rotationally supported protostellar disks
• Disc formation in turbulent massive cores: Circumventing the magnetic braking catastrophe
• Formation of Magnetized Prestellar Cores with Ambipolar Diffusion and Turbulence
• Magnetic Fields in Astrophysical Jets: From Launch to Termination
• A Constrained-Gradient Method to Control Divergence Errors in Numerical MHD
• Cosmic-ray ionisation in collapsing clouds
• Grand Design Spiral Arms in A Young Forming Circumstellar Disk
• Disk Formation in Magnetized Clouds Enabled by the Hall Effect
• Protostellar birth with ambipolar and ohmic diffusion
• Magnetic fields during the early stages of massive star formation - II. A generalised outflow criterion
• DR 21(OH): a highly fragmented, magnetized, turbulent dense core
• A Sub-arcsecond Survey Toward Class 0 Protostars in Perseus: Searching for Signatures of Protostellar Disks
• Modeling the Resolved Disk Around the Class 0 Protostar L1527
• A chemical solver to compute molecule and grain abundances and non-ideal MHD resistivities in prestellar core collapse calculations
• ALMA's Polarized View of 10 Protostars in the Perseus Molecular Cloud
• Detection of a Magnetized Disk around a Very Young Protostar
• The role of magnetic fields in the formation of protostellar discs
• Importance of the Initial Conditions for Star Formation - II. Fragmentation Induced Starvation and Accretion Shielding
• The Envelope and Embedded Disk around the Class 0 Protostar L1157-mm: Dual-wavelength Interferometric Observations and Modeling
• Disk Formation Enabled by Enhanced Resistivity
• STARFORGE: The effects of protostellar outflows on the IMF
• There is no magnetic braking catastrophe: Low-mass star cluster and protostellar disc formation with non-ideal magnetohydrodynamics
• Physical Processes in Star Formation
• 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?
• Outflows and mass accretion in collapsing dense cores with misaligned rotation axis and magnetic field
• Collimated jets from the first core
• Dust Polarization Toward Embedded Protostars in Ophiuchus with ALMA. I. VLA 1623
• Formation and Evolution of Disks around Young Stellar Objects
• Dust Polarization Toward Embedded Protostars in Ophiuchus with ALMA. III. Survey Overview
• The weak magnetic field of the O9.7 supergiant zeta Orionis A
• The impact of the Hall effect during cloud core collapse:implications for circumstellar disk evolution
• Magneto-Hydrodynamics of Population III Star Formation
• Synthetic observations of first hydrostatic cores in collapsing low-mass dense cores. I. Spectral energy distributions and evolutionary sequence
• The early history of protostellar disks, outflows, and binary stars
• The SILCC project - V. The impact of magnetic fields on the chemistry and the formation of molecular clouds
• The influence of magnetic fields on the thermodynamics of primordial star formation
• Accretion and magnetic field morphology around Class 0 stage protostellar discs
• Impact of Protostellar Outflow on Star Formation: Effects of Initial Cloud Mass
• The collapse of a molecular cloud core to stellar densities using radiation non-ideal magnetohydrodynamics
• Protostellar Accretion Flows Destabilized by Magnetic Flux Redistribution
• The Magnetic Field in the Class 0 Protostellar Disk of L1527
• Massive Outflows Driven by Magnetic Effects in Star Forming Clouds with High Mass Accretion Rates
• Nascent bipolar outflows associated with the first hydrostatic core candidates Barnard 1b-N and 1b-S
• Magnetised winds in dwarf galaxies
• Revealing the dynamics of Class 0 protostellar discs with ALMA
• Exploring Magnetic Field Structure in Star-Forming Cores with Polarization of Thermal Dust Emission
• ALMA Observations of Polarized 872 $\mu$m Dust Emission from the Protostellar Systems VLA 1623 and L1527
• Searching for kinematic evidence of Keplerian disks around Class 0 protostars with CALYPSO
• Jets and outflows of massive protostars - From cloud collapse to jet launching and cloud dispersal
• The lower limits of disc fragmentation and the prospects for observing fragmenting discs
• Modeling the magnetic field in the protostellar source NGC 1333 IRAS 4A
• The role of cosmic rays on magnetic field diffusion and the formation of protostellar discs
• On the Role of Pseudodisk Warping and Reconnection in Protostellar Disk Formation in Turbulent Magnetized Cores
• Protostellar collapse: the conditions to form dust rich protoplanetary disks
• Dust coagulation feedback on magnetohydrodynamic resistivities in protostellar collapse
• Disc formation in turbulent cloud cores: is magnetic flux loss necessary to stop the magnetic braking catastrophe or not?
• Effect of Angular Momentum Alignment and Strong Magnetic Fields on the Formation of Protostellar Disks
• High Resolution 8 mm and 1 cm Polarization of IRAS 4A from the VLA Nascent Disk and Multiplicity (VANDAM) Survey
• High-Velocity Jets and Slowly Rotating Envelope in B335
• Fragmentation induced starvation in Population III star formation: a resolution study
• First Direct Simulation of Brown Dwarf Formation in a Compact Cloud Core
• Collapse of turbulent massive cores with ambipolar diffusion and hybrid radiative transfer I. Accretion and multiplicity
• Observation of rotation in star forming regions: clouds, cores, disks, and jets
• From Poloidal to Toroidal: Detection of Well-ordered Magnetic Field in High-mass Proto-cluster G35.2-0.74N
• Adaptable Radiative Transfer Innovations for Submillimetre Telescopes (ARTIST) - Dust polarisation module (DustPol)
• The Circumbinary Outflow: A Protostellar Outflow Driven by a Circumbinary Disk
• Simulating hydromagnetic processes in star formation: introducing ambipolar diffusion into an adaptive mesh refinement code
• Physical structure of the envelopes of intermediate-mass protostars
• A quantification of the non-spherical geometry and accretion of collapsing cores
• The IMF and multiplicity of stars from gravity, turbulence, magnetic fields, radiation and outflow feedback
• Disc formation and fragmentation using radiative non-ideal magnetohydrodynamics
• Accretion Flows or Outflow Cavities? Uncovering the Gas Dynamics around Lupus 3-MMS
• Magnetic Flux Expulsion in Star Formation
• Impact of the Hall effect in star formation and the issue of angular momentum conservation
• Star Formation in Molecular Clouds
• Protostellar collapse and fragmentation using an MHD GADGET
• Radial transport of refractory inclusions and their preservation in the dead zone
• Hall Effect in Protostellar Disc Formation and Evolution
• Origin of Misalignments: Protostellar Jet, Outflow, Circumstellar Disc, and Magnetic Field
• Can magnetized turbulence set the mass scale of stars?
• Geometry, Kinematics, and Magnetization of Simulated Prestellar Cores
• Hall effect-driven formation of gravitationally unstable discs in magnetized molecular cloud cores
• The effect of extreme ionisation rates during the initial collapse of a molecular cloud core
• The Rotating Outflow, Envelope and Disk in Class-0/I protostar [BHB2007] 11 in the Pipe Nebula
• The Interplay between Ambipolar Diffusion and Hall Effect on Magnetic Field Decoupling and Protostellar Disc Formation
• The dynamical state of the First Hydrostatic Core Candidate Cha-MMS1
• Orbital and Mass Ratio Evolution of Protobinaries Driven by Magnetic Braking
• Early evolution of disk, outflow, and magnetic field of young stellar objects: Impact of dust model
• Magnetic fields in primordial accretion disks
• Collapse of turbulent massive cores with ambipolar diffusion and hybrid radiative transfer II. Outflows
• A Study of starless dark cloud LDN 1570: Distance, Dust properties and Magnetic field geometry
• Evidence for disks at an early stage in class 0 protostars?
• The magnetic diffusivities in 3D radiative chemo-hydrodynamic simulations of protostellar collapse
• Confronting 3 Dimensional Time-dependent Jet Simulations with HST Observations
• The Athena++ Adaptive Mesh Refinement Framework: Multigrid Solvers for Self-Gravity
• The role of initial magnetic field structure in the launching of protostellar jets
• Primordial magnetic fields in Population III star formation: a magnetised resolution study
• The role of the turbulence driving mode for the Initial Mass Function
• An observational correlation between magnetic field, angular momentum and fragmentation in the envelopes of Class 0 protostars?
• Synthetic observations of first hydrostatic cores in collapsing low-mass dense cores II. Simulated ALMA dust emission maps
• Three-Dimensional MHD Simulation of Caltech Plasma Jet Experiment: First Results
• Collapse and Fragmentation of Magnetic Molecular Cloud Cores with the Enzo AMR MHD Code. I. Uniform Density Sphere
• On the origin of magnetic fields in stars II: The effect of numerical resolution
• Protostellar disk formation by a non-rotating, non-axisymmetric collapsing cloud: model and comparison with observations
• Filaments and sheets of the warm-hot intergalactic medium
• Non-ideal magnetohydrodynamics on a moving mesh
• Hubble Space Telescope NICMOS Polarization Observations of Three Edge-on Massive YSOs
• Star Formation and Feedback: A Molecular Outflow-Prestellar Core Interaction in L1689N
• The Magnetic Field of L1544: I. Near-Infrared Polarimetry and the Non-Uniform Envelope
• Synthetic molecular line observations of the first hydrostatic core from chemical calculations
• Implementation of dust particles in three-dimensional magnetohydrodynamics simulation: Dust dynamics in a collapsing cloud core
• Collapse and Fragmentation of Molecular Cloud Cores. X. Magnetic Braking of Prolate and Oblate Cores
• PDM relativistic quantum oscillator in Einstein-Maxwell-Lambda space-time
• ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Evidence for a Molecular Jet Launched at an Unprecedented Early Phase of Protostellar evolution
• The dynamically young outflow of the Class 0 protostar Cha-MMS1
• Dust Motion and Possibility of Dust Growth in a Growing Circumstellar Disk
• Smoothed particle magnetohydrodynamics with the geometric density average force expression
• Massive Prestellar Cores in Radiation-magneto-turbulent Simulations of Molecular Clouds
• General magnetized Weyl solutions: Disks and motion of charged particles
• Magnetic Flux Transport by turbulent reconnection in astrophysical flows
• [Fe II] 1.64 um Features of Jets and Outflows from Young Stellar Objects in the Carina Nebula
• Building protoplanetary disks from the molecular cloud: redefining the disk timeline
• Linear dust polarization during the embedded phase of protostar formation
• Aligned grains and inferred toroidal magnetic fields in the envelopes of massive young stellar objects
• On the propagation of Alfvén waves in the dusty interstellar medium. Can we neglect dust inertia in molecular clouds?
• Time Evolution of 3D Disk Formation with Misaligned Magnetic Field and Rotation Axes
• Birth of magnetized low-mass protostars and circumstellar disks
• Linking High- and Low-Mass Star Formation: Observation-Based Continuum Modelling and Physical Conditions
• Magnetohydrodynamic Model of Late Accretion onto a Protoplanetary Disk: Cloudlet Encounter Event
• Discovery of Asymmetric Spike-like Structures of the 10 au Disk around the Very Low-luminosity Protostar Embedded in the Taurus Dense Core MC 27/L1521F with ALMA
• Gravitational Collapse and Disk Formation in Magnetized Cores
• Protostellar disk accretion in turbulent filaments
• The formation of low-mass stars and brown dwarfs
• Emission from a Young Protostellar Object I. Signatures of Young Embedded Outflows
• Insights into the first and second hydrostatic core stages from numerical simulations
• Star formation across cosmic time
• Axisymmetric smoothed particle magneto-hydrodynamics
• How Does a Protostar Form by Magnetized Gravitational Collapse?
• Magnetic fields and young stellar objects in cometary cloud LDN 1616
• Fragmentation of Dense Rotation-Dominated Structures Fed by Collapsing Gravomagneto-Sheetlets and Origin of Misaligned 100 au-Scale Binaries and Multiple Systems
• Star-forming environments in smoothed particle magnetohydrodynamics simulations I: Clump extraction and properties
• Formation of low-mass stars and brown dwarfs
• Can High-velocity Protostellar Jets Help to Drive Low-velocity Outflow?
• Accretion discs, low-mass protostars and planets: probing the impact of magnetic fields on stellar formation
• Primary disks and their observational appearance in collapsing magnetic rotating protostellar clouds
• Disc formation in turbulent cloud cores: Circumventing the magnetic braking catastrophe
• Static charged fluid around a massive magnetic dipole
• JOYS: JWST MIRI/MRS spectra of the inner 500 au region of the L1527 IRS bipolar outflow
• The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars VI. Insights from Radiative Transfer Modeling
• Dust coagulation during the early stages of star formation: molecular cloud collapse and first hydrostatic core evolution
• Magneto-Gravitational Regulated Streamer Accretion onto a Class 0 Protostellar System
• Discs and outflows in the early phases of massive star formation: influence of magnetic fields and ambipolar diffusion