Magnetic field structure in the Flattened Envelope and Jet in the young protostellar system HH 211

Abstract

HH 211 is a young Class 0 protostellar system, with a flattened envelope, a possible rotating disk, and a collimated jet. We have mapped it with the Submillimeter Array in 341.6 GHz continuum and SiO J=8-7 at ~ 0.6 resolution. The continuum traces the thermal dust emission in the flattened envelope and the possible disk. Linear polarization is detected in the continuum in the flattened envelope. The field lines implied from the polarization have different orientations, but they are not incompatible with current gravitational collapse models, which predict different orientation depending on the region/distance. Also, we might have detected for the first time polarized SiO line emission in the jet due to the Goldreich-Kylafis effect. Observations at higher sensitivity are needed to determine the field morphology in the jet.

arXiv comment5 pages, 2 figures

References in corpus (17)

• Density, Velocity, and Magnetic Field Structure in Turbulent Molecular Cloud Models
• The Submillimeter Array
• Magnetic Fields in the Formation of Sun-Like Stars
• Protostellar disk formation and transport of angular momentum during magnetized core collapse
• Collapse of Magnetized Singular Isothermal Toroids: II. Rotation and Magnetic Braking
• TADPOL: A 1.3 mm Survey of Dust Polarization in Star-forming Cores and Regions
• A Magnetized Jet from a Massive Protostar
• Misalignment of Magnetic Fields and Outflows in Protostellar Cores
• Does Magnetic Field-Rotation Misalignment Solve the Magnetic Braking Catastrophe in Protostellar Disk Formation?
• The Magnetic Field Morphology of the Class 0 Protostar L1157-mm
• Extreme Active Molecular Jets in L1448C
• Interferometric Mapping of Magnetic Fields in Star-forming Regions III. Dust and CO polarization in DR21(OH)
• Rotation and Outflow motions in the very low-mass Class 0 protostellar system HH 211 at subarcsecond resolution
• Submillimeter arcsecond-resolution mapping of the highly collimated protostellar jet HH 211
• Detection of a Magnetized Disk around a Very Young Protostar
• Exploring Magnetic Field Structure in Star-Forming Cores with Polarization of Thermal Dust Emission
• The Dynamics of the Envelope Surrounding the Protostar HH 211-mm

Cited by in corpus (14)

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• Jet Motion, Internal Working Surfaces, and Nested Shells in the Protostellar System HH 212
• ALMA Dust Polarization Observations of Two Young Edge-on Protostellar Disks
• Helical Magnetic Fields in the NGC1333 IRAS 4A Protostellar Outflows
• ALMA observations of the very young Class 0 protostellar system HH 211-mms: a 30-au dusty disk with a disk-wind traced by SO?
• A Balanced Budget View on Forming Giant Planets by Pebble Accretion
• A Multi-Epoch SMA Study of the HH 211 Protostellar Jet: Jet Motion and Knot Formation
• A Pseudodisk Threaded with a Toroidal and Pinched Poloidal Magnetic Field Morphology in the HH 211 Protostellar System
• An observational correlation between magnetic field, angular momentum and fragmentation in the envelopes of Class 0 protostars?
• Low Level Carbon Monoxide Line Polarization in two Protoplanetary Disks: HD 142527 and IM Lup
• A study of the wiggle morphology of HH 211 through numerical simulations
• Models for velocity decrease in HH34