Observations of CH in the direction of SGR B2

Details Observations of CH in the direction of SGR B2 Observations of CH in the direction of SGR B2

Jun 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....66..437a&link_type=abstract

Astronomy and Astrophysics, vol. 66, no. 3, June 1978, p. 437-439.

Physics

4

Hydrocarbons, Interstellar Gas, Molecular Ions, Spatial Distribution, Abundance, Astronomical Maps, Cloud Physics, Hydrogen Clouds, Hyperfine Structure, Interstellar Chemistry, Line Spectra, Spectral Line Width

Scientific paper

Observations of CH in the direction of Sgr B2 show the presence of all three hyperfine components of the ground-state Lambda-doublet. There are seven or more velocity components, some arising in the Sgr B2 cloud itself, others in the intervening medium. Column densities are calculated and confirm that in dense clouds the abundance of CH decreases relative to other molecules.

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