A laboratory rotational study of the interstellar propynal
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F20%3A43920294" target="_blank" >RIV/60461373:22340/20:43920294 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0022285220301016?casa_token=FT-6BwNeM_0AAAAA:1ZhWs-1RCz8-h1uJpfjxHMSV0vHt9O1v4oLfI5SvvOnQdESSPjGKjrp1S_00hiPR_DdetRdvEw" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0022285220301016?casa_token=FT-6BwNeM_0AAAAA:1ZhWs-1RCz8-h1uJpfjxHMSV0vHt9O1v4oLfI5SvvOnQdESSPjGKjrp1S_00hiPR_DdetRdvEw</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jms.2020.111333" target="_blank" >10.1016/j.jms.2020.111333</a>
Alternative languages
Result language
angličtina
Original language name
A laboratory rotational study of the interstellar propynal
Original language description
The discovery of propynal HC[tbnd]CCHO in the interstellar medium (ISM), has been reported in previous investigations, but its detection relied on only a few measured rotational transitions. Therefore, we provide in this work an exhaustive experimental study of its rotational spectra in the microwave, millimeter-wave (mm-wave), and sub-millimeter wave (sub-mm) regions from 6 to 480 GHz. We employed different but complementary spectroscopic techniques in the time and frequency domains. Chirped pulse Fourier transform microwave spectroscopy (CP-FTMW) from 6 to 18 GHz was used to measure and analyze the ground state rotational transitions of the three 13C isotopic species in their natural abundances. The Stark-modulation microwave spectroscopy allowed the identification of rotational spectra in excited vibrational states. The room temperature mm-wave and sub-mm wave spectroscopy made possible the study of the rotational spectra from 82 to 480 GHz in the ground state as well as in the five low-lying excited vibrational states. We have collected more than 2500 newly assigned transitions of propynal and determined very accurate sets of spectroscopic rotational constants for each state. Moreover, we have assigned about 200 rotational lines for the three 13C isotopologues. Reliable line-lists of frequencies are provided for further observations of this molecule in different interstellar regions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
<a href="/en/project/GJ19-25116Y" target="_blank" >GJ19-25116Y: From laboratory to space: generation and spectroscopic characterization of interstellar molecules</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Molecular Spectroscopy
ISSN
0022-2852
e-ISSN
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Volume of the periodical
372
Issue of the periodical within the volume
July–August 2020
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
111333
UT code for WoS article
000579811500004
EID of the result in the Scopus database
2-s2.0-85088922580