Formation of interstellar thioformaldehyde

Details Formation of interstellar thioformaldehyde Formation of interstellar thioformaldehyde

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ijrsp...8..219g&link_type=abstract

(National Physical Laboratory of India, Indian Space Research Organization, and Indian National Science Academy, Annual Radio an

Physics

Space Physics

Formaldehyde, Interstellar Chemistry, Neutral Gases, Sulfides, Chemical Reactions, Gas Ionization, Molecular Spectra, Vapor Phases

Scientific paper

Several neutral gas phase reaction processes for forming thioformaldehyde in dense clouds are proposed where ultraviolet radiations are almost totally excluded and the molecules are ionized by cosmic rays and by chemi-ionization processes. The proposed processes include radiative association of H2 and CS, radiative association of CH2 and S, and neutral-neutral reaction. It is shown that the first two processes are able to supply the required amount of thioformaldehyde whereas the third process proves to be of no consequence. The predicted amount of thioformaldehyde is consistent with the observations.

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