Universität zu Köln

Theule, Patrice, Endres, Christian, Hermanns, Marius, Bossa, Jean-Baptiste and Potapov, Alexey (2020). High-Resolution Gas Phase Spectroscopy of Molecules Desorbed from an Ice Surface: A Proof-of-Principle Study. ACS Earth Space Chem., 4 (1). S. 86 - 97. WASHINGTON: AMER CHEMICAL SOC. ISSN 2472-3452

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Abstract

High-resolution gas phase spectroscopy techniques in the microwave, millimeter-wave, and terahertz spectral ranges can be used to study complex organic molecules desorbed from interstellar ice analogue surfaces with a high sensitivity. High-resolution gas phase spectroscopy gives unambiguous information about the molecular composition, the molecular structure, and transition frequencies needed for their detection by radio telescopes in various interstellar and circumstellar environments. The results will be useful not only for interpreting astronomical spectra and understanding astrophysical processes, but also for more general studies of gas-surface chemistry. This paper presents a new experimental approach based on a combination of a chirped-pulse Fourier transform microwave spectrometer detection and a low temperature surface desorption experiment. The experimental set-up is benchmarked on the desorption of ammonia ice detected by high-resolution gas phase microwave spectroscopy.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Theule, Patrice UNSPECIFIED UNSPECIFIED UNSPECIFIED Endres, Christian UNSPECIFIED UNSPECIFIED UNSPECIFIED Hermanns, Marius UNSPECIFIED UNSPECIFIED UNSPECIFIED Bossa, Jean-Baptiste UNSPECIFIED UNSPECIFIED UNSPECIFIED Potapov, Alexey UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-352073
DOI:	10.1021/acsearthspacechem.9b00246
Journal or Publication Title:	ACS Earth Space Chem.
Volume:	4
Number:	1
Page Range:	S. 86 - 97
Date:	2020
Publisher:	AMER CHEMICAL SOC
Place of Publication:	WASHINGTON
ISSN:	2472-3452
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language INTERSTELLAR ICE; THERMAL-DESORPTION; SPECTROMETER; IRRADIATION Multiple languages Chemistry, Multidisciplinary; Geochemistry & Geophysics Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/35207