Detection of interstellar nitrogen sulfide.
Abstract
The detection and positive identification of interstellar NS is reported. The radio emission was observed from Sgr B2 and is attributed to the J = 5/2 to J = 3/2 transitions in the 2 Pi(1/2) c-state (115.16 GHz) and d-state (115.6 GHz) of (N-14)(S-32). Statistical-equilibrium calculations are used to derive a NS column density of the order of 10 to the 14th power per sq cm. This result is found to be in qualitative agreement with previous observations of other sulfur-containing molecules in Sgr B2, including SO, CS, H2S, OCS, and CH2S.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- September 1975
- DOI:
- 10.1086/181918
- Bibcode:
- 1975ApJ...200L.147G
- Keywords:
-
- Electron Transitions;
- Emission Spectra;
- Interstellar Matter;
- Microwave Spectra;
- Nitrogen Compounds;
- Sulfides;
- Ion Density (Concentration);
- Radio Astronomy;
- Spectral Line Width;
- Astrophysics