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The small-scale outflow structure of embedded sources in taurus

  • Session B: Pre-Main Sequence Outflows
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Abstract

High resolution interferometric COJ=1−0 observations of the outflows from two young embedded sources, TMC1 and TMC1A, show the high-velocity gas to have a conical structure, with a constant opening angle of ∼ 45° extending to within 1000 AU of the central stars. The correspondence of near-infrared reflection nebulosity atK band with blueshifted CO emission in both objects suggests the lobes are partially evacuated, as do position-velocity diagrams from single-dish COJ=2−1 data. We suggest that the outflows are driven by jets which impart momentum to the ambient medium through shocks, rather than through the entrainment of molecular material along the edges of the jet.

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Authors and Affiliations

  1. National Radio Astronomy Observatory, Socorro, New Mexico, USA

    C. J. Chandler

  2. Infrared Processing and Analysis Center, Jet Propulsion Laboratory and California Institute of Technology, Pasadena, California, USA

    S. Terebey

  3. Physics Department, University of California, Riverside, California, USA

    M. Barsony

  4. Physics Department, University College, ADFA, Canberra, ACT, Australia

    T. J. T. Moore

Authors
  1. C. J. Chandler
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  2. S. Terebey
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  3. M. Barsony
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  4. T. J. T. Moore
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The NRAO is operated by Associated Universities, Inc., under cooperative agreement with the National Science Foundation

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Chandler, C.J., Terebey, S., Barsony, M. et al. The small-scale outflow structure of embedded sources in taurus. Astrophys Space Sci 224, 109–112 (1995). https://doi.org/10.1007/BF00667831

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  • DOI: https://doi.org/10.1007/BF00667831

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