High-resolution observations of the Orion bright bar

Details High-resolution observations of the Orion bright bar High-resolution observations of the Orion bright bar

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ap%26ss.118..401o&link_type=abstract

(IAU, Asian-Pacific Regional Meeting, 3rd, Kyoto, Japan, Sept. 30-Oct. 5, 1984) Astrophysics and Space Science (ISSN 0004-640X),

Astronomy and Astrophysics

Astronomy

4

Astronomical Maps, Hydrogen Clouds, Line Spectra, Molecular Clouds, Orion Nebula, Shock Waves, Early Stars, Ionized Gases, Radio Astronomy, Wave Propagation

Scientific paper

High resolution strip maps of CS (J = 1-0) and H51α line emission across the Orion bright bar are presented. They reveal the existence of a high density molecular layer (molecular sheet) plane parallel to the ionization front. This molecular sheet is redshifted relative to the ambient molecular cloud by about 2 km s-1. The rapid decrease of the CS emission at about 50 arc sec from the bar suggests that a shock front exists here and the sheet is a post shock layer.

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