Laboratory measurements and astronomical search of the hso radical

Lattanzi, Valerio

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https://hdl.handle.net/2142/91336 Copy

Description

Title

Laboratory measurements and astronomical search of the hso radical

Author(s)

Lattanzi, Valerio

Contributor(s)

• Cernicharo, Jose
• Tercero, Belén
• Puzzarini, Cristina
• Cazzoli, Gabriele

Issue Date

2016-06-21

Keyword(s)

Astronomy

Abstract

The sulphur chemistry in space is still quite puzzling although several S-bearing species have been detected in the interstellar medium (ISM) in our local system and outside our galaxy. In particular, we observe very large quantities of sulphur harbouring molecules, especially in high-mass star forming regions, that are in perfect accordance with its solar abundance, while in the cold, dense ISM a much lower abundance is observed compared to its solar one. To have a better understanding of the sulphur chemistry in space, it is crucial to derive the broadest picture of the chemical network involving the formation of sulphur species. In this work we report high-resolution spectra of a simple triatomic S-bearing molecule, the HSO radical, with experiments well into the THz region. Thanks to the spectroscopic results of this work, which provide accurate frequency predictions up to the THz, we have also performed a rigorous search for HSO in space. The main outcomes of our work will be briefly presented, showing in particular the synergy between the laboratory and the observations.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

En

Permalink

http://hdl.handle.net/2142/91336

Copyright and License Information

Copyright 2016 by the authors

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