The gas density gradient for three dark interstellar clouds

Details The gas density gradient for three dark interstellar clouds The gas density gradient for three dark interstellar clouds

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...287..723f&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 287, Dec. 15, 1984, p. 723-727. Research supported by the Research Corp. an

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17

Formaldehyde, Gas Density, Interstellar Gas, Molecular Clouds, Brightness Distribution, Computational Astrophysics

Scientific paper

A grid of models has been constructed of the surface brightness of selected transitions of interstellar formaldehyde for three interstellar clouds. The grid included radial gas density gradients over a considerable range from uniform to very steep. The model results were then compared to observations of the interstellar dark clouds B361, L183, and L134. In all three cases, the comparison indicates that the gas is centrally condensed and follows a gradient in density which closely approximates an inverse square law. This result offers a hint that the dust may be more centrally condensed than the gas in B361.

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