The SiN radical in interstellar clouds

Details The SiN radical in interstellar clouds The SiN radical in interstellar clouds

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...199..127r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 199, no. 1-2, June 1988, p. 127-130. Research supported by Coordenacao do Aper

Other

2

Abundance, Emission Spectra, Interstellar Gas, Silicon Nitrides, Transition Probabilities, Exothermic Reactions, Ground State

Scientific paper

The chemistry of the SiN radical is discussed on the basis of gas phase reactions which are likely to occur in interstellar clouds. Estimated column densities of the SiN molecule are 2.4×1012cm-2 and 1.2×1013cm-2 for the Sgr B2 and Orion plateau sources, respectively. Assuming optically thin conditions, the authors estimate antenna temperatures for the 218511.979 and 131213.981 MHz lines to be of about 16 mK and 9 mK for the Orion plateau and Sgr B2 sources, respectively.

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