Rotational spectrum of 13C2-methyl formate (HCOO13CH3) and detection of the two 13C-methyl formate in Orion

Laboratory measurements and analysis of the microwave and millimeter-wave spectra of potential interstellar molecules are a prerequisite for their subsequent identification by radioastronomical techniques. The spectral analysis provides spectroscopic parameters that are used in the assignment proced...

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Autores: Kleiner, I., Carvajal Zaera, Miguel, Margulès, L., Tercero, B., Demyk, K., Guillemin, J. C., Lattanzi, V., Walters, A., Demaison, J., Wlodarczak, G., Huet, Thérèse R., Møllendal, H., Ilyushin, V. V., Cernicharo, J.
Tipo de documento: artigo
Data de publicação:2009
País:España
Recursos:Universidad de Huelva (UHU)
Repositório:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglês
OAI Identifier:oai:ariasmontano.uhu.es:10272/5424
Acesso em linha:http://hdl.handle.net/10272/5424
Access Level:Acceso aberto
Palavra-chave:Line
Identification – Methods
Data analysis – Methods
Laboratory – Methods
Oservational - ISM
Molecules – Submillimeter
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repository_id_str
spelling Rotational spectrum of 13C2-methyl formate (HCOO13CH3) and detection of the two 13C-methyl formate in OrionKleiner, I.Carvajal Zaera, MiguelMargulès, L.Tercero, B.Demyk, K.Guillemin, J. C.Lattanzi, V.Walters, A.Demaison, J.Wlodarczak, G.Huet, Thérèse R.Møllendal, H.Ilyushin, V. V.Cernicharo, J.LineIdentification – MethodsData analysis – MethodsLaboratory – MethodsOservational - ISMMolecules – SubmillimeterLaboratory measurements and analysis of the microwave and millimeter-wave spectra of potential interstellar molecules are a prerequisite for their subsequent identification by radioastronomical techniques. The spectral analysis provides spectroscopic parameters that are used in the assignment procedure of the laboratory spectra, and that also predict the frequencies of transitions not measured in the laboratory with a high degree of precision. Aims. An experimental laboratory study and its theoretical analysis is presented for 13C2-methyl formate (HCOO13CH3) allowing a search for this isotopologue in the Orion molecular cloud. The 13C1-methyl formate (H13COOCH3) molecule was also searched for in this interstellar cloud, using previously published spectroscopic data. Methods. The experimental spectra of 13C2-methyl formate were recorded in the microwave and sub-mm energy ranges (4–20 GHz, 8–80 GHz, 150–700 GHz). The spectra were analyzed using the Rho-Axis Method (RAM), which takes the CH3 internal rotation and the coupling between internal rotation and global rotation into account. Results. Twenty-seven spectroscopic constants of 13C2-methyl formate have been obtained from a fit of 936 transitions of the ground torsional state with a standard (unitless) deviation of 1.08. A prediction of line positions and intensities is also produced. This prediction allowed us to identify 230 13C2-methyl formate lines in the Orion interstellar molecular cloud.We refitted all previously published ground state transitions of the 13C1-methyl formate molecule in order to provide a prediction of its ground state spectrum. 234 lines of 13C1-methyl formate were detected in the Orion interstellar cloud using that prediction.EDP Sciences20092009-06-0120092009-06-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/5424reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/54242026-06-02T14:58:11Z
dc.title.none.fl_str_mv Rotational spectrum of 13C2-methyl formate (HCOO13CH3) and detection of the two 13C-methyl formate in Orion
title Rotational spectrum of 13C2-methyl formate (HCOO13CH3) and detection of the two 13C-methyl formate in Orion
spellingShingle Rotational spectrum of 13C2-methyl formate (HCOO13CH3) and detection of the two 13C-methyl formate in Orion
Kleiner, I.
Line
Identification – Methods
Data analysis – Methods
Laboratory – Methods
Oservational - ISM
Molecules – Submillimeter
title_short Rotational spectrum of 13C2-methyl formate (HCOO13CH3) and detection of the two 13C-methyl formate in Orion
title_full Rotational spectrum of 13C2-methyl formate (HCOO13CH3) and detection of the two 13C-methyl formate in Orion
title_fullStr Rotational spectrum of 13C2-methyl formate (HCOO13CH3) and detection of the two 13C-methyl formate in Orion
title_full_unstemmed Rotational spectrum of 13C2-methyl formate (HCOO13CH3) and detection of the two 13C-methyl formate in Orion
title_sort Rotational spectrum of 13C2-methyl formate (HCOO13CH3) and detection of the two 13C-methyl formate in Orion
dc.creator.none.fl_str_mv Kleiner, I.
Carvajal Zaera, Miguel
Margulès, L.
Tercero, B.
Demyk, K.
Guillemin, J. C.
Lattanzi, V.
Walters, A.
Demaison, J.
Wlodarczak, G.
Huet, Thérèse R.
Møllendal, H.
Ilyushin, V. V.
Cernicharo, J.
author Kleiner, I.
author_facet Kleiner, I.
Carvajal Zaera, Miguel
Margulès, L.
Tercero, B.
Demyk, K.
Guillemin, J. C.
Lattanzi, V.
Walters, A.
Demaison, J.
Wlodarczak, G.
Huet, Thérèse R.
Møllendal, H.
Ilyushin, V. V.
Cernicharo, J.
author_role author
author2 Carvajal Zaera, Miguel
Margulès, L.
Tercero, B.
Demyk, K.
Guillemin, J. C.
Lattanzi, V.
Walters, A.
Demaison, J.
Wlodarczak, G.
Huet, Thérèse R.
Møllendal, H.
Ilyushin, V. V.
Cernicharo, J.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Line
Identification – Methods
Data analysis – Methods
Laboratory – Methods
Oservational - ISM
Molecules – Submillimeter
topic Line
Identification – Methods
Data analysis – Methods
Laboratory – Methods
Oservational - ISM
Molecules – Submillimeter
description Laboratory measurements and analysis of the microwave and millimeter-wave spectra of potential interstellar molecules are a prerequisite for their subsequent identification by radioastronomical techniques. The spectral analysis provides spectroscopic parameters that are used in the assignment procedure of the laboratory spectra, and that also predict the frequencies of transitions not measured in the laboratory with a high degree of precision. Aims. An experimental laboratory study and its theoretical analysis is presented for 13C2-methyl formate (HCOO13CH3) allowing a search for this isotopologue in the Orion molecular cloud. The 13C1-methyl formate (H13COOCH3) molecule was also searched for in this interstellar cloud, using previously published spectroscopic data. Methods. The experimental spectra of 13C2-methyl formate were recorded in the microwave and sub-mm energy ranges (4–20 GHz, 8–80 GHz, 150–700 GHz). The spectra were analyzed using the Rho-Axis Method (RAM), which takes the CH3 internal rotation and the coupling between internal rotation and global rotation into account. Results. Twenty-seven spectroscopic constants of 13C2-methyl formate have been obtained from a fit of 936 transitions of the ground torsional state with a standard (unitless) deviation of 1.08. A prediction of line positions and intensities is also produced. This prediction allowed us to identify 230 13C2-methyl formate lines in the Orion interstellar molecular cloud.We refitted all previously published ground state transitions of the 13C1-methyl formate molecule in order to provide a prediction of its ground state spectrum. 234 lines of 13C1-methyl formate were detected in the Orion interstellar cloud using that prediction.
publishDate 2009
dc.date.none.fl_str_mv 2009
2009-06-01
2009
2009-06-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/5424
url http://hdl.handle.net/10272/5424
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.81155

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