A study of depletion in low-velocity diffuse interstellar gas

Details A study of depletion in low-velocity diffuse interstellar gas A study of depletion in low-velocity diffuse interstellar gas

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982phdt.........5m&link_type=abstract

Ph.D. Thesis Colorado Univ., Boulder.

Computer Science

1

Depletion, Diffuse Radiation, Interstellar Gas, Carbides, High Resolution, Shock Spectra

Scientific paper

The diffuse gas in the Scorpius-Ophiuchi region of the sky was studied in order to determine the effect of a weak shock on interstellar abundances. Using high-resolution spectra from the Copernicus satellite, column densities were derived from atomic species in five lines of sight. Each line-of-sight contains two or more velocity components and depletions were calculated for the separate components. In addition, optical observations of two molecular species, CH and CH+, were made for four lines-of-sight. The presence of CH+ was used as a shock signature and the CH/CH+ velocity separation was used to determine the velocity of the observed shock.

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