Ammonia clumps in the Orion and Cepheus clouds

Details Ammonia clumps in the Orion and Cepheus clouds Ammonia clumps in the Orion and Cepheus clouds

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26as...98...51h&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 98, no. 1, p. 51-75.

Astronomy and Astrophysics

Astronomy

107

Ammonia, Interstellar Gas, Mass Distribution, Molecular Clouds, Velocity Distribution, Astronomical Maps, Infrared Astronomy Satellite, Star Formation, Temperature Distribution

Scientific paper

The results are presented of ammonia mapping observations toward embedded IRAS sources in the Orion and Cepheus molecular cloud complexes. Sizes, masses, and spatial distributions of physical characteristics of the dense molecular clumps in these massive star-forming regions are determined. The clumps in Orion and Cepheus are found to be larger, warmer, more massive, and have greater velocity distributions than the Taurus cores studied by Benson and Myers (1983, 1989). The infrared sources in Orion are younger relative to those found in the other complexes.

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