IRC +10216 as a spectroscopic laboratory: improved rotational constants for SiC2, its isotopologues, and Si2C

19 pages, 7 figures, 18 tables

Detalles Bibliográficos
Autores: Cernicharo, José, Guélin, M., Agúndez, Marcelino, Pardo Carrión, Juan Ramón, Massalkhi, S., Fonfría, José Pablo, Velilla Prieto, L., Quintana-Lacaci, G., Marcelino, Nuria, Marka, C., Navarro, S., Kramer, C.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/400962
Acceso en línea:http://hdl.handle.net/10261/400962
https://api.elsevier.com/content/abstract/scopus_id/85054953737
Access Level:acceso abierto
Palabra clave:Astrochemistry
Circumstellar matter
Line: identification
Molecular data
Stars: carbon
Stars: individual (IRC +10216)
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spelling IRC +10216 as a spectroscopic laboratory: improved rotational constants for SiC2, its isotopologues, and Si2CCernicharo, JoséGuélin, M.Agúndez, MarcelinoPardo Carrión, Juan RamónMassalkhi, S.Fonfría, José PabloVelilla Prieto, L.Quintana-Lacaci, G.Marcelino, NuriaMarka, C.Navarro, S.Kramer, C.AstrochemistryCircumstellar matterLine: identificationMolecular dataStars: carbonStars: individual (IRC +10216)19 pages, 7 figures, 18 tablesThis work presents a detailed analysis of the laboratory and astrophysical spectral data available for 28SiC2, 29SiC2,30SiC2, Si13CC, and Si2C. New data on the rotational lines of these species between 70 and 350 GHz have been obtained with high spectral resolution (195 kHz) with the IRAM 30m telescope in the direction of the circumstellar envelope IRC +10216. Frequency measurements can reach an accuracy of 50 kHz for features observed with a good signal to noise ratio. From the observed astrophysical lines and the available laboratory data new rotational and centrifugal distortion constants have been derived for all the isotopologues of SiC2, allowing to predict their spectrum with high accuracy in the millimeter and submillimeter domains. Improved rotational and centrifugal distortion constants have also been obtained for disilicon carbide, Si2C. This work shows that observations of IRC +10216 taken with the IRAM 30m telescope, with a spectral resolution of 195 kHz, can be used for any molecular species detected in this source to derive, or improve, its rotational constants. Hence, IRC +10216 in addition to be one the richest sources in molecular species in the sky, can also be used as a state-of-the-art spectroscopy laboratory in the millimeter and submillimeter domains.We thank Spanish MINECO for funding support through grants AYA2012-32032 and AYA2016-75066-C2-1-P, and the CONSOLIDER program “ASTROMOL” CSD2009-00038. We thank the European Research Council for funding support under Synergy Grant ERC-2013-SyG, G.A. 610256 (NANOCOSMOS). The data presented in this work have been gathered over a long period of time. We thank the IRAM sta of the 30m radio telescope for his continuous support during the observations presented in this work. We thank our referee, Carl Gottlieb, for useful comments and suggestions.Peer reviewedEDP SciencesMinisterio de Economía y Competitividad (España)European Commission#NODATA##NODATA##NODATA##NODATA##NODATA##NODATA##NODATA##NODATA##NODATA##NODATA##NODATA##NODATA#Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/400962https://api.elsevier.com/content/abstract/scopus_id/85054953737reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO//AYA2012-32032info:eu-repo/grantAgreement/MINECO//AYA2016-75066-C2-1-Pinfo:eu-repo/grantAgreement/MICINN//CSD2009-00038info:eu-repo/grantAgreement/EC/FP7/610256https://doi.org/10.1051/0004-6361/201833335Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4009622026-05-22T06:33:51Z
dc.title.none.fl_str_mv IRC +10216 as a spectroscopic laboratory: improved rotational constants for SiC2, its isotopologues, and Si2C
title IRC +10216 as a spectroscopic laboratory: improved rotational constants for SiC2, its isotopologues, and Si2C
spellingShingle IRC +10216 as a spectroscopic laboratory: improved rotational constants for SiC2, its isotopologues, and Si2C
Cernicharo, José
Astrochemistry
Circumstellar matter
Line: identification
Molecular data
Stars: carbon
Stars: individual (IRC +10216)
title_short IRC +10216 as a spectroscopic laboratory: improved rotational constants for SiC2, its isotopologues, and Si2C
title_full IRC +10216 as a spectroscopic laboratory: improved rotational constants for SiC2, its isotopologues, and Si2C
title_fullStr IRC +10216 as a spectroscopic laboratory: improved rotational constants for SiC2, its isotopologues, and Si2C
title_full_unstemmed IRC +10216 as a spectroscopic laboratory: improved rotational constants for SiC2, its isotopologues, and Si2C
title_sort IRC +10216 as a spectroscopic laboratory: improved rotational constants for SiC2, its isotopologues, and Si2C
dc.creator.none.fl_str_mv Cernicharo, José
Guélin, M.
Agúndez, Marcelino
Pardo Carrión, Juan Ramón
Massalkhi, S.
Fonfría, José Pablo
Velilla Prieto, L.
Quintana-Lacaci, G.
Marcelino, Nuria
Marka, C.
Navarro, S.
Kramer, C.
author Cernicharo, José
author_facet Cernicharo, José
Guélin, M.
Agúndez, Marcelino
Pardo Carrión, Juan Ramón
Massalkhi, S.
Fonfría, José Pablo
Velilla Prieto, L.
Quintana-Lacaci, G.
Marcelino, Nuria
Marka, C.
Navarro, S.
Kramer, C.
author_role author
author2 Guélin, M.
Agúndez, Marcelino
Pardo Carrión, Juan Ramón
Massalkhi, S.
Fonfría, José Pablo
Velilla Prieto, L.
Quintana-Lacaci, G.
Marcelino, Nuria
Marka, C.
Navarro, S.
Kramer, C.
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
European Commission
#NODATA#
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#NODATA#
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#NODATA#
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#NODATA#
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Astrochemistry
Circumstellar matter
Line: identification
Molecular data
Stars: carbon
Stars: individual (IRC +10216)
topic Astrochemistry
Circumstellar matter
Line: identification
Molecular data
Stars: carbon
Stars: individual (IRC +10216)
description 19 pages, 7 figures, 18 tables
publishDate 2018
dc.date.none.fl_str_mv 2018
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/400962
https://api.elsevier.com/content/abstract/scopus_id/85054953737
url http://hdl.handle.net/10261/400962
https://api.elsevier.com/content/abstract/scopus_id/85054953737
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO//AYA2012-32032
info:eu-repo/grantAgreement/MINECO//AYA2016-75066-C2-1-P
info:eu-repo/grantAgreement/MICINN//CSD2009-00038
info:eu-repo/grantAgreement/EC/FP7/610256
https://doi.org/10.1051/0004-6361/201833335
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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