Detection of clump and interclump gas in the Rosette Molecular Cloud Complex

Details Detection of clump and interclump gas in the Rosette Molecular Cloud Complex Detection of clump and interclump gas in the Rosette Molecular Cloud Complex

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...300l..89b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 300, Jan. 15, 1986, p. L89-L93.

Astronomy and Astrophysics

Astrophysics

104

Interstellar Gas, Interstellar Matter, Molecular Clouds, Carbon Monoxide, Clumps, Stellar Evolution

Scientific paper

High-resolution, high-sensitivity CO and (C-13)O observations have been made of the Rosette Molecular Cloud Complex at one beamwidth resolution. Clumpiness of the (C-13)O is seen everywhere in the complex. The clumps are shown to be easily identified entities with densities 10 times the volume-averaged density of the entire complex. The clumps are shown to be embedded in pervasive molecular 'interclump' gas of low average volume density (2/cu cm) which has not previously been observed. The velocity dispersion of the interclump gas is about 3 times greater than that of the clumps, implying that the gas is not gravitationally bound to the complex. It is shown that no special support of the complex as a whole needs to be postulated to prevent catastrophic collapse.

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