Source of the high-velocity molecular flow in Orion

Details Source of the high-velocity molecular flow in Orion Source of the high-velocity molecular flow in Orion

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...267l..41w&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 267, Apr. 1, 1983, p. L41-L45.

Astronomy and Astrophysics

Astrophysics

104

Astronomical Spectroscopy, Interstellar Matter, Molecular Flow, Molecular Spectra, Orion Nebula, Brightness Temperature, High Speed, Silicon Oxides, Water Masers

Scientific paper

The paper presents 6-arcsec resolution aperture synthesis maps of the 86.8 GHz SiO (v = 0, J = 2-1) emission from Orion-KL. The maps show that the 'high-velocity' molecular flow in this region is bipolar and originates within a few arc seconds of the infrared source IRc2. The blueshifted SiO line wing arises from a well-defined lobe which extends W from IRc2, while the redshifted line wing is strongest to the E of IRc2. The axis defined by the high-velocity SiO emission is not well aligned with the lobe of vibrationally excited H2 emission to the NW of IRc2.

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