Naslov
Sulphur-bearing species in molecular clouds

Autori
Bilalbegović, Goranka ; Baranović, Goran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni

Skup
From clouds to protoplanetary disks: the astrochemical link

Mjesto i datum
Berlin, Njemačka, 04.10.2015. - 08.10.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
astrophysical molecules; sulphur species; infrared spectra; radio spectra; densty functional theory

Sažetak
Using density functional theory methods we studied several molecules that could help in the solution of the missing sulphur problem in dense clouds and circumstellar regions, as well as in the clarification of the sulphur chemistry in comets. We calculated infrared spectra of the following molecules: the trimer (CH2S)3 and the tetramer (CH2S)4 of thioformaldehyde, pentathian S5CH2, hexathiepan S6CH2, thiirane C2H4S, trisulfane HSSSH, and thioacetone (CH3)2CS. We suggest that some of unidentified spectral features measured by Infrared Space Observatory in several active galactic nuclei and starburst galaxies could be caused by (CH2S)3, (CH2S)4, and thiirane C2H4S. The objects whose unidentified infrared features we com- pare with calculated bands are NGC 253, M82, NGC 1068, Circinus, Arp 220, 30 Doradus, Orion KL, and Sgr B2.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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