Millimeter-wave Spectrum Analysis and Searches for 2-aminopropenenitrile (H2C=C(NH2)CN) toward the Galactic Center Sources Sgr B2(N1) and G+0.693-0.027

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F25%3A43932511" target="_blank" >RIV/60461373:22340/25:43932511 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3847/1538-4357/ae0d89" target="_blank" >https://doi.org/10.3847/1538-4357/ae0d89</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/1538-4357/ae0d89" target="_blank" >10.3847/1538-4357/ae0d89</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Millimeter-wave Spectrum Analysis and Searches for 2-aminopropenenitrile (H2C=C(NH2)CN) toward the Galactic Center Sources Sgr B2(N1) and G+0.693-0.027

Popis výsledku v původním jazyce

We present an analysis of the millimeter-wave spectra of 2-aminopropenenitrile ( H2C=C(NH2)CN ), an alpha-aminonitrile of plausible prebiotic and astrophysical relevance. The molecule has a rotational spectrum that is in harmony with a large-amplitude motion of the amino group. Accurate rest transition frequencies are reported in selected regions between 158 and 324 GHz, along with extended and improved sets of molecular parameters for the ground state. In addition, several vibrational satellites were identified for the first time. Experimental results were used to search for 2-aminopropenenitrile toward two chemically rich interstellar sources in the Sgr B2 region of the Galactic center: the hot molecular core Sgr B2(N1S) and the molecular cloud G+0.693-0.027. We also searched for the reduced derivative, 2-aminopropionitrile ( CH3CH(NH2)CN ), in the former source. None of the molecules were detected, and the upper limits of their column densities were obtained.

Název v anglickém jazyce

Millimeter-wave Spectrum Analysis and Searches for 2-aminopropenenitrile (H2C=C(NH2)CN) toward the Galactic Center Sources Sgr B2(N1) and G+0.693-0.027

Popis výsledku anglicky

We present an analysis of the millimeter-wave spectra of 2-aminopropenenitrile ( H2C=C(NH2)CN ), an alpha-aminonitrile of plausible prebiotic and astrophysical relevance. The molecule has a rotational spectrum that is in harmony with a large-amplitude motion of the amino group. Accurate rest transition frequencies are reported in selected regions between 158 and 324 GHz, along with extended and improved sets of molecular parameters for the ground state. In addition, several vibrational satellites were identified for the first time. Experimental results were used to search for 2-aminopropenenitrile toward two chemically rich interstellar sources in the Sgr B2 region of the Galactic center: the hot molecular core Sgr B2(N1S) and the molecular cloud G+0.693-0.027. We also searched for the reduced derivative, 2-aminopropionitrile ( CH3CH(NH2)CN ), in the former source. None of the molecules were detected, and the upper limits of their column densities were obtained.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/GA24-12586S" target="_blank" >GA24-12586S: Prekurzory prebiotických molekul: struktura, formování a hledání ve vesmíru</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

ASTROPHYSICAL JOURNAL

ISSN

0004-637X

e-ISSN

1538-4357

Svazek periodika

994

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

nestránkováno

Kód UT WoS článku

001616040500001

EID výsledku v databázi Scopus

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