An observational correlation between magnetic field, angular momentum and fragmentation in the envelopes of Class 0 protostars?

Abstract

To assess the potential role of magnetic fields in regulating the envelope rotation and the fragmentation of Class 0 protostars, we carried out observations of the dust polarized emission at 0.87 mm with the SMA, in the envelopes of a large sample of 20 Class 0 protostars. We estimate the mean magnetic field orientation over the central 1000 au envelope scales and compared it to that of the protostellar outflow in order to study the relation between their misalignment and the kinematics of the circumstellar gas. We discover a strong relationship between the misalignment of the magnetic field orientation with the outflow and the amount of angular momentum observed at similar scales in the protostellar envelope, revealing a potential link between the kinetic and the magnetic energy at envelope scales. The relation could be driven by favored B misalignments in more dynamical envelopes or a dependence of the envelope dynamics with the large-scale B initial configuration. Comparing the trend with the presence of fragmentation, we observe that single sources are mostly associated with conditions of low angular momentum in the inner envelope and good alignment of the magnetic field with protostellar outflows, at intermediate scales. Our results suggest that the properties of the magnetic field in protostellar envelopes bear a tight relationship with the rotating-infalling gas directly involved in the star and disk formation: we find that it may not only influence the fragmentation of protostellar cores into multiple stellar systems, but also set the conditions establishing the pristine properties of planet-forming disks.

arXiv comment21 pages, 7 figures, accepted for publication in A&A

References in corpus (99)

• The Spitzer c2d Legacy Results: Star Formation Rates and Efficiencies; Evolution and Lifetimes
• Stellar Multiplicity
• Dense Cores in Dark Clouds. XIV. N2H+(1-0) maps of dense cloud cores
• Magnetic Fields in the Formation of Sun-Like Stars
• N2H+ and C18O Depletion in a Cold Dark Cloud
• The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. A Statistical Characterization of Class 0 and I Protostellar Disks
• Magnetic processes in a collapsing dense core. I Accretion and Ejection
• Star formation in Perseus - V. Outflows detected by HARP
• Protostellar disk formation and transport of angular momentum during magnetized core collapse
• The VLA Nascent Disk and Multiplicity Survey of Perseus Protostars (VANDAM). II. Multiplicity of Protostars in the Perseus Molecular Cloud
• Collapse of Magnetized Singular Isothermal Toroids: II. Rotation and Magnetic Braking
• A Large Catalog of Accurate Distances to Local Molecular Clouds: The Gaia DR2 Edition
• Millimeter-wave polarization of protoplanetary disks due to dust scattering
• The impact of magnetic fields on single and binary star formation
• TADPOL: A 1.3 mm Survey of Dust Polarization in Star-forming Cores and Regions
• Magnetic Fields and Massive Star Formation
• Occurrence Rates of Planets orbiting FGK Stars: Combining Kepler DR25, Gaia DR2 and Bayesian Inference
• Ambipolar diffusion in low-mass star formation. I. General comparison with the ideal MHD case
• Magnetic processes in a collapsing dense core. II Fragmentation. Is there a fragmentation crisis ?
• The earliest phases of star formation - A Herschel key project. The thermal structure of low-mass molecular cloud cores
• Misalignment of Magnetic Fields and Outflows in Protostellar Cores
• Characterizing young protostellar disks with the CALYPSO IRAM-PdBI survey: large Class 0 disks are rare
• The Gould's Belt Distances Survey (GOBELINS). V. Distances and Kinematics of the Perseus molecular cloud
• SMA Observations of Class 0 Protostars: A High-Angular Resolution Survey of Protostellar Binary Systems
• Toward understanding the formation of multiple systems - A pilot IRAM-PdBI survey of Class 0 objects
• Gravitational collapse of magnetized clouds. I. Ideal MHD accretion flow
• Magnetic Braking and Protostellar Disk Formation: Ambipolar Diffusion
• The formation of active protoclusters in the Aquila Rift: A millimeter continuum view
• Effects of Ohmic and ambipolar diffusion on the formation and evolution of the first cores, protostars and circumstellar discs
• Molecular Outflows Driven by Low-Mass Protostars. I. Correcting for Underestimates When Measuring Outflow Masses and Dynamical Properties
• Gaia-DR2 confirms VLBA parallaxes in Ophiuchus, Serpens and Aquila
• Magnetically regulated collapse in the B335 protostar ? I. ALMA observations of the polarized dust emission
• IRAS 16293: A "Magnetic" Tale of Two Cores
• Magnetically self-regulated formation of early protoplanetary discs
• Complex Structure in Class 0 Protostellar Envelopes II: Kinematic Structure from Single-Dish and Interferometric Molecular Line Mapping
• Decoupling of Magnetic Fields in Collapsing Protostellar Envelopes and Disk Formation and Fragmentation
• Class 0 Protostars in the Perseus Molecular Cloud: A Correlation Between the Youngest Protostars and the Dense Gas Distribution
• The Magnetic Field Morphology of the Class 0 Protostar L1157-mm
• Near-Infrared Imaging Polarimetry Toward Serpens South: Revealing the Importance of the Magnetic Field
• Interferometric observations of magnetic fields in forming stars
• Rotation and Outflow motions in the very low-mass Class 0 protostellar system HH 211 at subarcsecond resolution
• Alignment Between Flattened Protostellar Infall Envelopes and Ambient Magnetic Fields
• The ALMA view of the protostellar system HH212 - The wind, the cavity, and the disk
• Imaging chemical differentiation around the low-mass protostar L483-mm
• L483: Warm Carbon-Chain Chemistry Source Harboring Hot Corino Activity
• Magnetic Fields in Star-Forming Molecular Clouds. V. Submillimeter Polarization of the Barnard 1 Dark Cloud
• ALMA's Polarized View of 10 Protostars in the Perseus Molecular Cloud
• The role of magnetic fields in the formation of protostellar discs
• Observations of Infalling and Rotational Motions on a 1,000-AU Scale around 17 Class 0 and 0/I Protostars: Hints of Disk Growth and Magnetic Braking?
• 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
• IC348-SMM2E: a Class 0 proto-brown dwarf candidate forming as a scaled-down version of low-mass stars
• No Keplerian Disk >10 AU around the Protostar B335: Magnetic Braking or Young Age?
• Formation and Evolution of Disks around Young Stellar Objects
• Distribution of Serpens South protostars revealed with ALMA
• Spitzer Observations of Bok Globule B335: Isolated Star Formation Efficiency and Cloud Structure
• Results of SPARO 2003: Mapping Magnetic Fields in Giant Molecular Clouds
• The Flattened, Rotating Molecular Gas Core of Protostellar Jet HH 212
• The reflection-symmetric wiggle of the young protostellar jet HH 211
• Characterizing magnetic field morphologies in three Serpens protostellar cores with ALMA
• Nascent bipolar outflows associated with the first hydrostatic core candidates Barnard 1b-N and 1b-S
• Highly Ordered and Pinched Magnetic Fields in the Class 0 Proto-Binary System L1448 IRS 2
• The JCMT BISTRO Survey: The Magnetic Field of the Barnard 1 Star-Forming Region
• Angular momentum profiles of Class 0 protostellar envelopes
• Searching for kinematic evidence of Keplerian disks around Class 0 protostars with CALYPSO
• ALMA Dust Polarization Observations of Two Young Edge-on Protostellar Disks
• An initial overview of the extent and structure of recent star formation within the Serpens Molecular Cloud using Gaia Data Release 2
• ALMA observations of the young protostellar system Barnard 1b: signatures of an incipient hot corino in B1b-S
• The Effect of Misalignment between Rotation Axis and Magnetic Field on Circumstellar Disk
• Two-level hierarchical fragmentation in the Orion Molecular Cloud 1 northern filament
• Effect of Angular Momentum Alignment and Strong Magnetic Fields on the Formation of Protostellar Disks
• SMA observations of the polarized dust emission in solar-type Class 0 protostars: the magnetic field properties at envelope scales
• Probing the CO and methanol snow lines in young protostars. Results from the CALYPSO IRAM-PdBI survey
• Two Bipolar Outflows and Magnetic Fields in a Multiple Protostar System, L1448 IRS 3
• Disc formation and fragmentation using radiative non-ideal magnetohydrodynamics
• Synthetic Observations of Magnetic Fields in Protostellar Cores
• Variability of the NGC 1333 IRAS 4A Outflow: Molecular Hydrogen and Silicon Monoxide Images
• Magnetically-regulated fragmentation of a massive, dense and turbulent clump
• Origin of Misalignments: Protostellar Jet, Outflow, Circumstellar Disc, and Magnetic Field
• The Mass Evolution of Protostellar Disks and Envelopes in the Perseus Molecular Cloud
• Large-scale magnetic fields in Bok globules
• A Pseudodisk Threaded with a Toroidal and Pinched Poloidal Magnetic Field Morphology in the HH 211 Protostellar System
• On the origin of the molecular outflows in IRAS 16293-2422
• Interferometric observation of the L483 molecular core
• The Dynamics of the Envelope Surrounding the Protostar HH 211-mm
• Evidence for disks at an early stage in class 0 protostars?
• The rotating molecular core and precessing outflow of the young stellar object Barnard 1c
• HfS, Hyperfine Structure Fitting Tool
• Non-ideal magnetohydrodynamics vs turbulence II: Which is the dominant process in stellar core formation?
• Star formation in the vicinity of the IC 348 cluster
• Sub-arcsecond Kinematic Structure of the Outflow in the Vicinity of the Protostar in L483
• Probing the Earliest Stage of Protostellar Evolution -- Barnard 1-bN and Barnard 1-bS
• Magnetic field structure in the Flattened Envelope and Jet in the young protostellar system HH 211
• JCMT POL-2 and ALMA polarimetric observations of 6000-100 au scales in the protostar B335: linking magnetic field and gas kinematics in observations and MHD simulations
• The low-mass YSO CB230-A: investigating the protostar and its jet with NIR spectroscopy and Spitzer observations
• Distance, magnetic field and kinematics of a filamentary cloud LDN 1157
• The Envelope Kinematics and a Possible Disk Around the Class 0 Protostar within BHR7
• Magnetic Fields from Filaments to Cores

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• No impact of core-scale magnetic field, turbulence, or velocity gradient on sizes of protostellar disks in Orion A
• The factors that influence protostellar multiplicity I: Gas temperature, density, and mass in Perseus with Nobeyama
• The Rotation Dip in the Envelope-Disk Transition of HH 111: Evidence for Magnetic Braking
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