Molecular hydrogen jets and outflows in the Serpens south filamentary cloud

Abstract

We aimed to map the jets and outflows from the Serpens South star forming region and find an empirical relationship between the magnetic field and outflow orientation. Near-infrared H2 v=1-0 S(1) 2.122μm -line imaging of the \sim 30'-long filamentary shaped Serpens South star forming region was carried out. K s broadband imaging of the same region was used for continuum subraction. Candidate driving sources of the mapped jets/outflows are identified from the list of known protostars and young stars in this region, which was derived from studies using recent Spitzer and Herschel telescope observations. 14 Molecular Hydrogen emission-line objects(MHOs) are identified using our continuum-subtracted images. They are found to constitute ten individual flows. Out of these, nine flows are located in the lower-half(southern) part of the Serpens South filament, and one flow is located at the northern tip of the filament. Four flows are driven by well-identified Class 0 protostars, while the remaining six flows are driven by candidate protostars mostly in the Class I stage, based on the Spitzer and Herschel observations. The orientation of the outflows is systematically perpendicular to the direction of the near-infrared polarization vector, recently published in the literature. No significant correlation was observed between the orientation of the flows and the axis of the filamentary cloud.

Accepted by A&A for publication. 7 pages, 5 figures

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Cited by in corpus (10)

• A census of dense cores in the Aquila cloud complex: SPIRE/PACS observations from the Herschel Gould Belt survey
• Episodic molecular outflow in the very young protostellar cluster Serpens South
• Assessing molecular outflows and turbulence in the protostellar cluster Serpens South
• The Dynamical State of The Serpens South Filamentary Infrared Dark Cloud
• A Novel Survey for Young Substellar Objects with the W-band filter II. The Coolest and Lowest Mass Members of the Serpens-South Star-forming Region
• A deep near-infrared survey toward the Aquila molecular cloud - I. Molecular hydrogen outflows
• YSO jets in the Galactic Plane from UWISH2: V - Jets and Outflows in M17
• Radio Properties of Young Stellar Objects in the Core of the Serpens South Infrared Dark Cloud
• Young Stellar Populations in MYStIX Star Forming Regions: Candidate Protostars
• Variability and Jet Activity in the YSO MHO~3252~Y3 in Serpens South