Astrophysics and Space Science

, Volume 224, Issue 1–2, pp 139–142 | Cite as

Observations of shocked [FeII] and H2 line profiles in orion bullet wakes

  • Jonathan A. Tedds
  • Peter W. J. L. Brand
  • Michael G. Burton
  • Antonio Chrysostomou
  • Amadeu J. L. Fernandes
Session B: Pre-Main Sequence Outflows

Abstract

Recent near-IR imaging of the Orion molecular cloud has revealed a complex of dense bullets, visible as [FeII] emitting HH-objects at the tips of H2 wakes, ejected explosively from the cloud core. Having resolved individual bow-shock structures for the first time in this bright source, we have observed [FeII] 1.644µm velocity profiles of selected bullets and H2 1-0 S(1), 2.122µm velocity profiles for a series of positions along and across the corresponding bow-shock wakes. We present observed profiles for the bullet M42 HH1 and its associated wake and compare with theoretical bow-shock models.

Keywords

Velocity Profile Line Profile Molecular Cloud Bright Source Cloud Core 

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Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • Jonathan A. Tedds
    • 1
  • Peter W. J. L. Brand
    • 1
  • Michael G. Burton
    • 2
  • Antonio Chrysostomou
    • 3
  • Amadeu J. L. Fernandes
    • 4
  1. 1.Institute for AstronomyUniversity of EdinburghU.K.
  2. 2.School of PhysicsUniversity of New South WalesAustralia
  3. 3.Division of Physical SciencesUniversity of HertfordshireU.K.
  4. 4.Centro de AstrofisicaUniversidade do PortoPortugal

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