Physical parameters of the diffuse molecular cloud envelope at G180.9 + 4.1, next to S241

Details Physical parameters of the diffuse molecular cloud envelope at G180.9 + 4.1, next to S241 Physical parameters of the diffuse molecular cloud envelope at G180.9 + 4.1, next to S241

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.139..129v&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 139, no. 1, Dec. 1987, p. 129-137.

Astronomy and Astrophysics

Astronomy

1

Astronomical Spectroscopy, H Ii Regions, Line Spectra, Molecular Clouds, Data Reduction, Methyl Compounds, Physical Properties, Radio Astronomy

Scientific paper

Methylidyne (CH) line observations from the diffuse molecular cloud envelope at G180.9 + 4.1, situated between the optical H II region S241 and the molecular cloud core at G180.8 + 4.0, have been made with the 46-m Algonquin Radio Observatory telescope at Ontario. The analysis has revealed several envelope parameters including a CH column density of 2 x 10 to the 13th/sq cm, a microturbulent velocity of 2.6 km/s, and a total space density of 40/cu cm. The dynamic relationships among the various components suggest the existence of a blister-type H II region on the surface of the envelope of the molecular cloud.

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