Highly Collimated Jets and Wide-Angle Outflows in HH46/47: New Evidence from Spitzer IR Images

Abstract

We present new details of the structure and morphology of the jets and outflows in HH46/47 as seen in Spitzer infrared images from IRAC and MIPS, reprocessed using the ``HiRes'' deconvolution technique. HiRes improves the visualization of spatial morphology by enhancing resolution (to sub-arcsec levels in IRAC bands) and removing the contaminating side lobes from bright sources. In addition to sharper views of previously reported bow shocks, we have detected: (i) the sharply-delineated cavity walls of the wide-angle biconical outflow, seen in scattered light on both sides of the protostar, (ii) several very narrow jet features at distances 400 AU to 0.1 pc from the star, and, (iii) compact emissions at MIPS 24 micron coincident with the jet heads, tracing the hottest atomic/ionic gas in the bow shocks.

arXiv comment11 pages, 4 Figures, Accepted for publication in ApJ(Letters)

References in corpus (4)

• The Evolution of Outflow-Envelope Interactions in Low-Mass Protostars
• Spitzer observations of HH54 and HH7-11: mapping the H2 ortho-to-para ratio in shocked molecular gas
• A ballistic bow shock model for jet-driven protostellar outflow shells
• Transit flow models for low and high mass protostars

Cited by in corpus (46)

• A Catalog of Extended Green Objects (EGOs) in the GLIMPSE Survey: A new sample of massive young stellar object outflow candidates
• Star formation in Perseus - V. Outflows detected by HARP
• Water in star-forming regions with Herschel (WISH): II. Evolution of 557 GHz 110-101 emission in low-mass protostars
• Radio Jets from Young Stellar Objects
• Evolution of Protostellar Outflow around Low-mass Protostar
• Modelling Herschel observations of hot molecular gas emission from embedded low-mass protostars
• Magnetic Fields in Astrophysical Jets: From Launch to Termination
• APEX-CHAMP+ high-J CO observations of low-mass young stellar objects: IV. Mechanical and radiative feedback
• Origin of the hot gas in low-mass protostars: Herschel-PACS spectroscopy of HH 46
• Spitzer IRAC and MIPS Imaging of Clusters and Outflows in 9 High-mass Star Forming Regions
• Radiation Magnetohydrodynamics Simulation of Proto-Stellar Collapse: Two-Component Molecular Outflow
• ALMA Observations of the HH 46/47 Molecular Outflow
• APEX-CHAMP+ high-J CO observations of low-mass young stellar objects: I. The HH 46 envelope and outflow
• A census of molecular hydrogen outflows and their sources along the Orion A molecular ridge: characteristics and overall distribution
• A wide-angle outflow with the simultaneous presence of a high-velocity jet in the high-mass Cepheus A HW2 system
• Spitzer Observations of Bok Globule B335: Isolated Star Formation Efficiency and Cloud Structure
• [OI]63micron jets in class 0 sources detected by Herschel
• A shallow though extensive H2 2.12 micron imaging survey of Taurus-Auriga-Perseus: I. NGC1333, L1455, L1448 and B1
• HiRes Deconvolved Spitzer Images of 89 Protostellar Jets and Outflows: New Data on Evolution of Outflow Morphology
• Protostellar Jets Enclosed by Low-velocity Outflows
• The First Two Thousand Years of Star Formation
• ALMA Cycle 1 Observations of the HH46/47 Molecular Outflow: Structure, Entrainment and Core Impact
• Observational study of sites of triggered star formation: CO and mid-infrared observations
• The complex chemistry of outflow cavity walls exposed: the case of low-mass protostars
• Spitzer Space Telescope observations of the Carina Nebula: The steady march of feedback-driven star formation
• Dense and warm molecular gas in the envelopes and outflows of southern low-mass protostars
• An Episodic Wide-angle Outflow in HH 46/47
• High-pressure, low-abundance water in bipolar outflows. Results from a Herschel-WISH survey
• JWST Observations of Young protoStars (JOYS): overview of program and early results
• Water in star-forming regions with Herschel (WISH) V. The physical conditions in low-mass protostellar outflows revealed by multi-transition water observations
• A search for non-thermal radio emission from jets of massive young stellar objects
• c2d Spitzer IRS spectra of embedded low-mass young stars: gas-phase emission lines
• A spider-like outflow in Barnard 5 - IRS 1: The transition from a collimated jet to a wide-angle outflow?
• Atomic jet from SMM1 (FIRS1) in Serpens uncovers non-coeval binary companion
• Jets and Wide Angle Outflows in Cepheus E: New Evidence from Spitzer
• X-rays from the Power Sources of the Cepheus A Star-Forming Region
• Hypersonic Buckshot: Astrophysical Jets as Heterogeneous Collimated Plasmoids
• Spitzer observations of the HH 1/2 system. The discovery of the counterjet
• Star formation, structure, and formation mechanism of cometary globules: NIR observations of CG 1 and CG 2
• Spitzer and near-infrared observations of a new bi-polar protostellar outflow in the Rosette Molecular Cloud
• Massive young stellar object W42-MME: The discovery of an infrared jet using VLT/NACO near-infrared images
• Spitzer-IRAC survey of molecular jets in Vela-D
• Spitzer's mid-infrared view on an outer Galaxy Infrared Dark Cloud candidate toward NGC 7538
• An Isothermal Outflow in High-mass Star-forming Region G240.31+0.07
• WISE Green Objects (WGOs): the massive star candidates in the whole Galactic Plane ($\mid b\mid <2^{\circ }$)
• Rosette nebula globules: Seahorse giving birth to a star