A highly-collimated SiO jet in the HH212 protostellar outflow
arXiv:astro-ph/0612482 · doi:10.1051/0004-6361:20066800
Abstract
We mapped the HH212 Class 0 outflow in SiO(2--1, 5--4) and continuum using the PdBI in its extended configurations. The unprecedented angular resolution (down to 0.34") allows accurate comparison with a new, deep H2 image obtained at the VLT. The SiO emission is confined to a highly-collimated bipolar jet (width 0.35") along the outflow axis. The jet can be traced down to within 500 AU of the protostar, in a region that is heavily obscured in H2 images. Where both species are detected, SiO shows the same overall kinematics and structure as H2, indicating that both molecules are tracing the same material. We find that the high-velocity SiO gas near the protostar is not tracing a wide-angle wind but is already confined to a flow inside a narrow cone of half-opening angle < 6 deg.
arXiv commentAstronomy and Astrophysics Letter, in press
References in corpus (6)
- HST/STIS Spectroscopy of the Optical Outflow from DG Tau: Indications for Rotation in the Initial Jet Channel
- SiO J=5--4 in the HH211 Protostellar Jet Imaged with the SMA
- Predicted rotation signatures in MHD disc winds and comparison to DG Tau observations
- Infall and Outflow around the HH 212 protostellar system
- The Flattened, Rotating Molecular Gas Core of Protostellar Jet HH 212
- Kinematics of SiO J=8-7 Emission towards the HH 212 Jet
Cited by in corpus (66)
- SMA Observations of Class 0 Protostars: A High-Angular Resolution Survey of Protostellar Binary Systems
- Seeds Of Life In Space (SOLIS): The organic composition diversity at 300--1000 au scale in Solar-type star forming regions
- Molecule survival in magnetized protostellar disk winds. I. Chemical model and first results
- Extreme Active Molecular Jets in L1448C
- Formation and Atmosphere of Complex Organic Molecules of the HH 212 Protostellar Disk
- Rotation and Outflow motions in the very low-mass Class 0 protostellar system HH 211 at subarcsecond resolution
- The ALMA view of the protostellar system HH212 - The wind, the cavity, and the disk
- Shells, jets, and internal working surfaces in the molecular outflow from IRAS 04166+2706
- ALMA Results of the Pseudodisk, Rotating disk, and Jet in Continuum and HCO+ in the Protostellar System HH 212
- PdBI sub-arcsecond study of the SiO microjet in HH212 - Origin and collimation of Class 0 jets
- Molecular jets from low-mass young protostellar objects
- Rotating molecular outflows: the young T Tauri star in CB26
- A General Catalogue of Molecular Hydrogen Emission-Line Objects (MHOs) in Outflows from Young Stars
- Submillimeter arcsecond-resolution mapping of the highly collimated protostellar jet HH 211
- The CALYPSO IRAM-PdBI survey of jets from Class 0 protostars. Are jets ubiquitous in young stars ?
- Jets from Young Stars
- The jet and the disk of the HH 212 low-mass protostar imaged by ALMA: SO and SO2 emission
- Jet Motion, Internal Working Surfaces, and Nested Shells in the Protostellar System HH 212
- SiO outflows in high-mass star forming regions: A potential chemical clock?
- [OI]63micron jets in class 0 sources detected by Herschel
- Water and acetaldehyde in HH212: The first hot corino in Orion
- Observation of rotation in star forming regions: clouds, cores, disks, and jets
- Atomic jets from class 0 sources detected by Spitzer: the case of L1448-C
- Geometric and Kinematic Structure of the Outflow/Envelope System of L1527 Revealed by Subarcsecond-resolution Observation of CS
- High SiO abundance in the HH212 protostellar jet
- Deuterated methanol on Solar System scale around the HH212 protostar
- Mapping water in protostellar outflows with Herschel: PACS and HIFI observations of L1448-C
- A rotating molecular jet in Orion
- Jet rotation investigated in the near-ultraviolet with HST/STIS
- Evidence of a SiO collimated outflow from a massive YSO in IRAS 17233-3606
- The Launch Region of the SVS 13 Outflow and Jet
- SiO collimated outflows driven by high-mass YSOs in G24.78+0.08
- SiO excitation from dense shocks in the earliest stages of massive star formation
- Water and interstellar complex organics associated with the HH 212 protostellar disc - On disc atmospheres, disc winds, and accretion shocks
- Negative and Positive Feedback from a Supernova Remnant with SHREC: A detailed Study of the Shocked Gas in IC443
- Proper motions of collimated jets from intermediate-mass protostars in the Carina Nebula
- Prestellar and protostellar cores in Ori B9
- Rotating Bullets from A Variable Protostar
- Discovery of A Binary System in IRAM 04191+1522
- The role of SiO as a tracer of past star-formation events: The case of the high-mass protocluster NGC 2264-C
- Adaptive Optics Echelle Spectroscopy of [Fe II] 1.644 um in the RW Aur Jet: A Narrow Slice Down the Axis of the Flow
- Radio Imaging of the NGC 1333 IRAS 4A Region: Envelope, Disks, and Outflows of a Protostellar Binary System
- Molecular Jet of IRAS 04166+2706
- The H2 velocity structure of inner knots in HH 212: asymmetries and rotation
- Searching for Jet Rotation in Class 0/I Sources observed with GEMINI/GNIRS
- Hot methanol from the inner region of the HH 212 protostellar system
- YSO jets in the Galactic Plane from UWISH2: V - Jets and Outflows in M17
- SiO Outflows as Tracers of Massive Star Formation in Infrared Dark Clouds
- Mass ejection and time variability in protostellar outflows: Cep E. SOLIS XVI
- The HH 212 interstellar laboratory: astrochemistry as a tool to reveal protostellar disks on Solar System scales around a rising Sun
- The Giant Herbig-Haro Flow HH 212 and Associated Star Formation
- Deuterated Formaldehyde in the low mass protostar HH212
- Precessing Jet and Large Dust Grains in the V380 Ori NE Star-forming Region
- OMC-2 FIR 4 under the microscope: Shocks, filaments, and a highly collimated jet at 100 au scales
- Probing the hidden atomic gas in Class I jets with SOFIA
- Transverse velocity shifts in protostellar jets: rotation or velocity asymmetries?
- Evolution of the atomic component in protostellar outflows
- SiO: Not the perfect outflow tracer: Outflow studies of the massive star formation region IRAS 19410+2336
- Illuminating a tadpole's metamorphosis II: observing the on-going transformation with ALMA
- CMZoom III: Spectral Line Data Release
- Predictions for Observing Protostellar Outflows with ALMA
- Early Planet Formation in Embedded Disks (eDisk). XI. A high-resolution view toward the BHR 71 Class 0 protostellar wide binary
- Principal Component Analysis of computed emission lines from proto-stellar jets
- Side-entrainment in a jet embedded in a sidewind
- A Rotating Protostellar Jet Launched from the Innermost Disk of HH 212
- ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Deriving Inclination Angle and Velocity of the Protostellar Jets from their SiO Knots