CO (v = 1-0) emission in the molecular shock regions of OMC-1

Details CO (v = 1-0) emission in the molecular shock regions of OMC-1 CO (v = 1-0) emission in the molecular shock regions of OMC-1

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...397l.119g&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 397, no. 2, p. L119-L122.

Astronomy and Astrophysics

Astronomy

3

Interstellar Matter, Molecular Flow, Orion Nebula, Shock Waves, Spaceborne Astronomy, Spectrometers, Carbon Monoxide, Emission Spectra, Line Spectra, Luminosity

Scientific paper

Using the new Aerospace spectrometer on the Kuiper Airborne Observatory, we have obtained observations of the molecular shocks associated with OMC-1. Unexpectedly these observations reveal (b = 1-0) emission from CO at 4.6 microns superposed on a strong continuum. Our observations strongly suggest that both the emission feature and the continuum are produced in molecular shocks. Since the (v = 1-0) band of CO is only excited in high-velocity shocks, we may be observing for the first time the primary driving mechanism in these regions. Even if these features are produced by scattering, the characteristics will provide new constraints on the conditions in and the geometry of the shock regions.

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