Collapse of turbulent massive cores with ambipolar diffusion and hybrid radiative transfer II. Outflows
arXiv:2109.11241 · doi:10.1051/0004-6361/202141648
Abstract
(Abridged) Most massive protostars exhibit bipolar outflows. Nonetheless, there is no consensus regarding the mechanism at the origin of these outflows, nor on the cause of the less-frequently observed monopolar outflows. We aim to identify the origin of early massive protostellar outflows, focusing on the combined effects of radiative transfer and magnetic fields in a turbulent medium. We use four state-of-the-art radiation-magnetohydrodynamical simulations following the collapse of massive 100 Msun pre-stellar cores with the Ramses code. Turbulence is taken into account via initial velocity dispersion. We use a hybrid radiative transfer method and include ambipolar diffusion. We find that turbulence delays the launching of outflows, which appear to be mainly driven by magnetohydrodynamical processes. Magnetic tower flow and the magneto-centrifugal acceleration contribute to the acceleration and the former operates on larger volumes than the latter. Our finest resolution, 5 AU, does not allow us to get converged results on magneto-centrifugally accelerated outflows. Radiative acceleration takes place as well, dominates in the star vicinity, enlarges the outflow extent, and has no negative impact on the launching of magnetic outflows (up to M~17 Msun, L~1e5 Lsun). The associated opening angles (20-30 deg when magnetic fields dominate) suggest additional (de-)collimating effects to meet observational constraints. Outflows are launched nearly perpendicular to the disk and are misaligned with the initial core-scale magnetic fields, in agreement with several observational studies. In the most turbulent run, the outflow is monopolar. We conclude that magnetic processes dominate the acceleration of massive protostellar outflows up to ~17 Msun, against radiative processes. Turbulence perturbs the outflow launching and is a possible explanation for monopolar outflows.
arXiv commentAccepted for publication in A&A, 20 pages, 15 figures
References in corpus (70)
- Cosmological Hydrodynamics with Adaptive Mesh Refinement: a new high resolution code called RAMSES
- On the Formation of Massive Stars
- High-Mass Star and Massive Cluster Formation in the Milky Way
- Massive molecular outflows
- A High Order Godunov Scheme with Constrained Transport and Adaptive Mesh Refinement for Astrophysical MHD
- Global collapse of molecular clouds as a formation mechanism for the most massive stars
- Magnetic processes in a collapsing dense core. I Accretion and Ejection
- Protostellar disk formation and transport of angular momentum during magnetized core collapse
- A study of high velocity molecular outflows with an up-to-date sample
- The Dynamics of Radiation Pressure-Dominated HII Regions
- Outflows and Jets from Collapsing Magnetized Cloud Cores
- TADPOL: A 1.3 mm Survey of Dust Polarization in Star-forming Cores and Regions
- On Why Disks Generate Magnetic Towers and Collimate Jets
- Collapse of massive magnetized dense cores using radiation-magneto-hydrodynamics: early fragmentation inhibition
- The Interplay of Magnetic Fields, Fragmentation and Ionization Feedback in High-Mass Star Formation
- Three-dimensional simulation of massive star formation in the disk accretion scenario
- Disk formation during collapse of magnetized protostellar cores
- Collapse, outflows and fragmentation of massive, turbulent and magnetized prestellar barotropic cores
- Misalignment of Magnetic Fields and Outflows in Protostellar Cores
- Magnetohydrodynamical Accretion Flows: Formation of Magnetic Tower Jet and Subsequent Quasi-Steady State
- Disk-Driven Rotating Bipolar Outflow in Orion Source I
- Radio Jets from Young Stellar Objects
- High- and Low-Mass Star Forming Regions from Hierarchical Gravitational Fragmentation. High local Star Formation Rates with Low Global Efficiencies
- How Protostellar Outflows Help Massive Stars Form
- An Unstable Truth: How Massive Stars get their Mass
- The influence of turbulence during magnetized core collapse and its consequences on low-mass star formation
- First hydrodynamics simulations of radiation forces and photoionization feedback in massive star formation
- Fast and accurate frequency-dependent radiation transport for hydrodynamics simulations in massive star formation
- Massive star formation via high accretion rates and early disk-driven outflows
- Alignment Between Flattened Protostellar Infall Envelopes and Ambient Magnetic Fields
- Protostellar birth with ambipolar and ohmic diffusion
- Magnetic fields during the early stages of massive star formation - II. A generalised outflow criterion
- The Role of Magnetic Fields in Protostellar Outflows and Star Formation
- ALMA reveals a large structured disk and nested rotating outflows in DG Tau B
- Plateau de Bure Interferometer Observations of the Disk and Outflow of HH30
- Radiation Magnetohydrodynamics In Global Simulations Of Protoplanetary Disks
- A Keplerian disk around Orion Source I, a ~15 Msun YSO
- Global Hydromagnetic Simulations of Protoplanetary Disks with Stellar Irradiation and Simplified Thermochemistry
- Outflows and mass accretion in collapsing dense cores with misaligned rotation axis and magnetic field
- On the simultaneous evolution of massive protostars and their host cores
- On the stability of radiation-pressure-dominated cavities
- Protostellar Outflows and Radiative Feedback from Massive Stars
- Radiation-Hydrodynamic Simulations of Protostellar Outflows: Synthetic Observations and Data Comparisons
- Incorporating Ambipolar and Ohmic Diffusion in the AMR MHD code RAMSES
- High Angular Resolution Observations of the Collimated Jet Source Associated with a Massive Protostar in IRAS 16547-4247
- Multi-directional mass-accretion and collimated outflows in W51
- Water masers in the massive protostar IRAS 20126+4104: ejection and deceleration
- Massive Outflows Driven by Magnetic Effects in Star Forming Clouds with High Mass Accretion Rates
- The Role of Outflows, Radiation Pressure, and Magnetic Fields in Massive Star Formation
- ALMA Cycle 1 Observations of the HH46/47 Molecular Outflow: Structure, Entrainment and Core Impact
- Jets and outflows of massive protostars - From cloud collapse to jet launching and cloud dispersal
- Jet formation from massive young stars: Magnetohydrodynamics versus radiation pressure
- Episodic accretion constrained by a rich cluster of outflows
- SMA observations of the polarized dust emission in solar-type Class 0 protostars: the magnetic field properties at envelope scales
- Collapse of turbulent massive cores with ambipolar diffusion and hybrid radiative transfer I. Accretion and multiplicity
- Massive Star Formation via the Collapse of Subvirial and Virialized Turbulent Massive Cores
- Hybrid Adaptive Ray-Moment Method (HARM): A Highly Parallel Method for Radiation Hydrodynamics on Adaptive Grids
- Lecture notes: Astrophysical fluid dynamics
- Multiple monopolar outflows driven by massive protostars in IRAS 18162-2048
- The impact of non-ideal magnetohydrodynamic processes on discs, outflows, counter-rotation and magnetic walls during the early stages of star formation
- A new hybrid radiative transfer method for massive star formation
- Millimeter and submillimeter high angular resolution interferometric observations: dust in the heart of IRAS 18162-2048
- Failed and delayed protostellar outflows with high mass accretion rates
- A two-moment radiation hydrodynamics scheme applicable to simulations of planet formation in circumstellar disks
- The circumestellar disk of the B0 protostar powering the HH 80-81 radio jet
- Radiation hydrodynamics including irradiation and adaptive mesh refinement with AZEuS. I. Methods
- Magnetic Field Structure of Orion Source I
- Outflows, cores and magnetic field orientations in W43-MM1 as seen by ALMA
- Disks around O-type young stellar objects
- Morphologies of protostellar outflows: An ALMA view
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- Modeling disks and magnetic outflows around a forming massive star: II. Dynamics of jets from massive protostars
- The role of magnetic fields in the formation of multiple massive stars
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- Anatomy of the Class I protostar L1489 IRS with NOEMA -- I. Disk, streamers, outflow(s) and bubbles at 3mm
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- ALMA-IMF XVII -- Census and lifetime of high-mass prestellar cores in 14 massive protoclusters
- Disk fragmentation around a massive protostar: a comparison of two three-dimensional codes
- Is the mm/submm dust polarization a robust tracer of the magnetic field topology in protostellar envelopes? A model exploration
- The Twisted Magnetic Field of the Protobinary L483
- Birth of magnetized low-mass protostars and circumstellar disks
- Discs are born eccentric
- Impact of a binary black hole on its outer circumbinary disc
- Disk Wind Feedback from High-mass Protostars. II. The Evolutionary Sequence
- The magnetic field of a magnetohydrodynamic disk wind: Water maser observations and simulations
- Numerical Insights into Disk Accretion, Eccentricity, and Kinematics in the Class 0 phase
- On the origin of the rotation of massive stars
- Discs and outflows in the early phases of massive star formation: influence of magnetic fields and ambipolar diffusion