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arXiv · 1401.7810

Spectroscopic characterization and detection of Ethyl Mercaptan in Orion

L. Kolesniková·B. Tercero·J. Cernicharo·J. L. Alonso·A. M. Daly·B. P. Gordon·S. T. Shipman
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Abstract

New laboratory data of ethyl mercaptan, CH$_{3}$CH$_{2}$SH, in the millimeter and submillimeter-wave domains (up to 880 GHz) provided very precise values of the spectroscopic constants that allowed the detection of $gauche$-CH$_3$CH$_2$SH towards Orion KL. 77 unblended or slightly blended lines plus no missing transitions in the range 80-280 GHz support this identification. A detection of methyl mercaptan, CH$_{3}$SH, in the spectral survey of Orion KL is reported as well. Our column density results indicate that methyl mercaptan is $\simeq$ 5 times more abundant than ethyl mercaptan in the hot core of Orion KL.

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L. Kolesniková, B. Tercero, J. Cernicharo, J. L. Alonso, A. M. Daly, B. P. Gordon, S. T. Shipman. 2014-01-30. Spectroscopic characterization and detection of Ethyl Mercaptan in Orion. https://doi.org/10.1088/2041-8205%2F784%2F1%2Fl7

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