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. Author manuscript; available in PMC: 2016 Oct 7.
Published in final edited form as: Astron Astrophys. 2016 Jul;591:A126. doi: 10.1051/0004-6361/201628745

Fig. 1.

Fig. 1

The N = 106,4(5) - 96,3(4) transition at ~397.2 GHz. In black, the signal when a mixture of H2S and O2 is employed in the discharge for producing HSO. In red, the recording when the radical is produced by using H2O only and sulfur adsorbed on cell walls.