Laboratory rotational spectrum of 2-hydroxyprop-2-enal and its astronomical search with ALMA

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Laboratory rotational spectrum of 2-hydroxyprop-2-enal and its astronomical search with ALMA

Popis výsledku v původním jazyce

The C3H4O2 family of isomers covers several species containing structural motifs typical for interstellar molecules, such as vinyl, hydroxyl, or aldehyde functional groups. Recent tentative detection of 3-hydroxypropenal and chemical modeling of its C3H4O2 isomers suggest that another member of this family, 2-hydroxyprop-2-enal, could be abundant in IRAS16293-24221. We performed laboratory measurements of millimetre-wave spectra of 2-hydroxyprop-2-enal with the Prague millimetre-wave semiconductor spectrometer2 in two distinct frequency regions of 128–166 and 285–329 GHz. Hundreds of rotational transitions of 2-hydroxyprop-2-enal in the ground state and the lowest-lying excited vi-brational state were assigned and analysed. Based on our data, the molecule was searched towards the solar-type protostar IRAS16293-2422 and the star-forming region Sagittarius B2(N). Results are provided in the present contribution.

Název v anglickém jazyce

Laboratory rotational spectrum of 2-hydroxyprop-2-enal and its astronomical search with ALMA

Popis výsledku anglicky

The C3H4O2 family of isomers covers several species containing structural motifs typical for interstellar molecules, such as vinyl, hydroxyl, or aldehyde functional groups. Recent tentative detection of 3-hydroxypropenal and chemical modeling of its C3H4O2 isomers suggest that another member of this family, 2-hydroxyprop-2-enal, could be abundant in IRAS16293-24221. We performed laboratory measurements of millimetre-wave spectra of 2-hydroxyprop-2-enal with the Prague millimetre-wave semiconductor spectrometer2 in two distinct frequency regions of 128–166 and 285–329 GHz. Hundreds of rotational transitions of 2-hydroxyprop-2-enal in the ground state and the lowest-lying excited vi-brational state were assigned and analysed. Based on our data, the molecule was searched towards the solar-type protostar IRAS16293-2422 and the star-forming region Sagittarius B2(N). Results are provided in the present contribution.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10406 - Analytical chemistry

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů