Abstract
New laboratory data of ethyl mercaptan, CH3CH2SH, in the millimeter- and submillimeter-wave domains (up to 880 GHz) provided very precise values of the spectroscopic constants that allowed the detection of gauche-CH3CH2SH toward Orion KL. This identification is supported by 77 unblended or slightly blended lines plus no missing transitions in the range 80-280 GHz. A detection of methyl mercaptan, CH3SH, in the spectral survey of Orion KL is reported as well. Our column density results indicate that methyl mercaptan is ≃ 5 times more abundant than ethyl mercaptan in the hot core of Orion KL. © 2014. The American Astronomical Society. All rights reserved.
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Kolesniková, L., Tercero, B., Cernicharo, J., Alonso, J. L., Daly, A. M., Gordon, B. P., & Shipman, S. T. (2014). Spectroscopic characterization and detection of ethyl mercaptan in orion. Astrophysical Journal Letters, 784(1). https://doi.org/10.1088/2041-8205/784/1/L7
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