Protostellar condensations within the Orion ridge

Details Protostellar condensations within the Orion ridge Protostellar condensations within the Orion ridge

May 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...304l..51m&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 304, May 15, 1986, p. L51-L55.

Astronomy and Astrophysics

Astrophysics

80

Interstellar Matter, Orion Nebula, Protostars, Stellar Evolution, Astronomical Maps, Condensation, Emission Spectra, H Ii Regions, Shock Wave Propagation

Scientific paper

Aperture synthesis observations of the CS J = 2 to 1 line and 95 GHz continuum emission from a 2 arcmin x 3 arcmin region around IRc2 in the OMC-1 molecular cloud have been obtained at 7.5 arcsec resolution with the Owens Valley Radio Observatory millimeter interferometer. These observations reveal four distinct condensations with the OMC-1 molecular ridge. The condensations lie along the edge of the bright central part of the H II region, M 42, suggesting that they may have been formed as a result of shock compression driven by the H II region. Their masses and densities, M about 50 solar masses and n about 10 to the 6th - 10 to the 7th/cu cm, suggest that the condensations will undergo further massive star formation on a short time scale (about 20,000 yr).

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