The millimeter and sub-millimeter rotational ...
Type de document :
Compte-rendu et recension critique d'ouvrage
Titre :
The millimeter and sub-millimeter rotational spectrum of triple 13C-substituted ethyl cyanide
Auteur(s) :
Pienkina, A.O. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Margulès, L., [Auteur correspondant]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Motiienko, Roman [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Müller, H.S.P. [Auteur]
I. Physikalisches Institut [Köln]
Guillemin, J.-C., [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Margulès, L., [Auteur correspondant]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Motiienko, Roman [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Müller, H.S.P. [Auteur]
I. Physikalisches Institut [Köln]
Guillemin, J.-C., [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Titre de la revue :
Astronomy and Astrophysics - A&A
Pagination :
A2
Éditeur :
EDP Sciences
Date de publication :
2017-05
ISSN :
0004-6361
Mot(s)-clé(s) en anglais :
ISM: molecules
line: identification
methods: laboratory: molecular
molecular data
submillimeter: ISM
techniques: spectroscopic
line: identification
methods: laboratory: molecular
molecular data
submillimeter: ISM
techniques: spectroscopic
Discipline(s) HAL :
Planète et Univers [physics]/Astrophysique [astro-ph]
Chimie/Autre
Chimie/Autre
Résumé en anglais : [en]
Context. A recently published astronomical detection of all three doubly 13C-substituted ethyl cyanides toward Sgr B2(N2) motivated us to investigate triple 13C isotopic species that are expected to be also present in the ...
Lire la suite >Context. A recently published astronomical detection of all three doubly 13C-substituted ethyl cyanides toward Sgr B2(N2) motivated us to investigate triple 13C isotopic species that are expected to be also present in the ISM.Aims. We aim to present an experimental study of the rotational spectrum of triple 13C-substituted ethyl cyanide, 13CH3 13CH2 13CN, in the frequency range 150-990 GHz. We want to use the determined spectroscopic parameters for searching for 13CH3 13CH2 13CN in ALMA data. The main objective of this work is to provide accurate frequency predictions to search for this molecule in the Galactic center source Sagittarius B2(N) and to facilitate its detection in space.Methods. The laboratory rotational spectrum of 13CH3 13CH2 13CN has been recorded with the Lille's fast DDS solid-state spectrometer between 150 GHz and 990 GHz.Results. More than 4000 rotational transitions were identified in the laboratory. The quantum numbers reach J = 115 and Ka = 39. Watson's Hamiltonian in the A and S reductions were used to analyze the spectra. Accurate spectroscopic parameters were determined. The rotational spectra of the 13C containing species CH3CH2CN have been assigned, thus allowing the determination of the rotational and centrifugal distortion constants © ESO, 2017.Lire moins >
Lire la suite >Context. A recently published astronomical detection of all three doubly 13C-substituted ethyl cyanides toward Sgr B2(N2) motivated us to investigate triple 13C isotopic species that are expected to be also present in the ISM.Aims. We aim to present an experimental study of the rotational spectrum of triple 13C-substituted ethyl cyanide, 13CH3 13CH2 13CN, in the frequency range 150-990 GHz. We want to use the determined spectroscopic parameters for searching for 13CH3 13CH2 13CN in ALMA data. The main objective of this work is to provide accurate frequency predictions to search for this molecule in the Galactic center source Sagittarius B2(N) and to facilitate its detection in space.Methods. The laboratory rotational spectrum of 13CH3 13CH2 13CN has been recorded with the Lille's fast DDS solid-state spectrometer between 150 GHz and 990 GHz.Results. More than 4000 rotational transitions were identified in the laboratory. The quantum numbers reach J = 115 and Ka = 39. Watson's Hamiltonian in the A and S reductions were used to analyze the spectra. Accurate spectroscopic parameters were determined. The rotational spectra of the 13C containing species CH3CH2CN have been assigned, thus allowing the determination of the rotational and centrifugal distortion constants © ESO, 2017.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Source :
Fichiers
- https://hal-univ-rennes1.archives-ouvertes.fr/hal-01544474/document
- Accès libre
- Accéder au document
- https://www.aanda.org/articles/aa/pdf/2017/05/aa30231-16.pdf
- Accès libre
- Accéder au document
- https://hal-univ-rennes1.archives-ouvertes.fr/hal-01544474/document
- Accès libre
- Accéder au document
- https://www.aanda.org/articles/aa/pdf/2017/05/aa30231-16.pdf
- Accès libre
- Accéder au document
- https://hal-univ-rennes1.archives-ouvertes.fr/hal-01544474/document
- Accès libre
- Accéder au document
- Pienkina_The%20millimeter%20and%20sub-millimeter.pdf
- Accès libre
- Accéder au document
- aa30231-16.pdf
- Accès libre
- Accéder au document
- document
- Accès libre
- Accéder au document
- document
- Accès libre
- Accéder au document
- Pienkina_The%20millimeter%20and%20sub-millimeter.pdf
- Accès libre
- Accéder au document