158 micron forbidden C II mapping of the Orion molecular cloud

Details 158 micron forbidden C II mapping of the Orion molecular cloud 158 micron forbidden C II mapping of the Orion molecular cloud

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...404..219s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 404, no. 1, p. 219-231.

Astronomy and Astrophysics

Astrophysics

104

Astronomical Maps, Molecular Clouds, Orion Nebula, Carbon Monoxide, Galactic Nuclei, Interstellar Radiation, Line Spectra, Photodissociation, Spectral Emission

Scientific paper

A fully sampled, 1000-point, 1-arcmin-resolution map of the inner 6.5 x 10 arcmin (alpha x delta) regions of the Orion Nebula in the 157.7409-micron forbidden fine-structure line is constructed. Large-scale strip maps in forbidden C II across the face of the Orion molecular cloud, and CO(17-16), (14-13), and (7-6) spectra are obtained at selected positions in the Orion H II region/molecular cloud interface. Strong forbidden C II line emission is observed across the face of the Orion molecular. The total forbidden C II luminosity from the Orion molecular cloud is about 1500 solar luminosities, or 0.3 percent of the FIR luminosity. The extended forbidden C II emission probably arises in either the UV-exposed surface of the molecular cloud or from the surfaces of UV-exposed clumps within the molecular cloud.

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