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2017ApJ...836...70G - Astrophys. J., 836, 70-70 (2017/February-2)

A search for interstellar monohydric thiols.

GORAI P., DAS A., DAS A., SIVARAMAN B., ETIM E.E. and CHAKRABARTI S.K.

Abstract (from CDS):

It has been pointed out by various astronomers that a very interesting relationship exists between interstellar alcohols and the corresponding thiols (sulfur analog of alcohols) as far as the spectroscopic properties and chemical abundances are concerned. Monohydric alcohols such as methanol and ethanol are widely observed and 1-propanol was recently claimed to have been seen in Orion KL. Among the monohydric thiols, methanethiol (chemical analog of methanol) has been firmly detected in Orion KL and Sgr B2(N2) and ethanethiol (chemical analog of ethanol) has been observed in Sgr B2(N2), though the confirmation of this detection is yet to come. It is very likely that higher order thiols could be observed in these regions. In this paper, we study the formation of monohydric alcohols and their thiol analogs. Based on our quantum chemical calculation and chemical modeling, we find that the Tg conformer of 1-propanethiol is a good candidate of astronomical interest. We present various spectroscopically relevant parameters of this molecule to assist in its future detection in the interstellar medium.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): astrochemistry - evolution - ISM: abundances - ISM: molecules - methods: numerical - techniques: spectroscopic - techniques: spectroscopic

Simbad objects: 5

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2020.01.26-21:29:44

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