Discovery of HCCCH2 CCH in TMC-1 with the QUIJOTE line survey

5 pages, 3 figures, 2 tables

Detalles Bibliográficos
Autores: Fuentetaja, R., Agúndez, Marcelino, Cabezas, Carlos, Tercero, Belén, Marcelino, Nuria, Pardo Carrión, Juan Ramón, Vicente, P. de, Cernicharo, José
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/379833
Acceso en línea:http://hdl.handle.net/10261/379833
Access Level:acceso abierto
Palabra clave:Astrochemistry
Line: identification
Molecular data
ISM: molecules
ISM: individual objects: TMC-1
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spelling Discovery of HCCCH2 CCH in TMC-1 with the QUIJOTE line surveyFuentetaja, R.Agúndez, MarcelinoCabezas, CarlosTercero, BelénMarcelino, NuriaPardo Carrión, Juan RamónVicente, P. deCernicharo, JoséAstrochemistryLine: identificationMolecular dataISM: moleculesISM: individual objects: TMC-15 pages, 3 figures, 2 tablesWe present the first detection in space of 1,4-pentadiyne. It has been found towards TMC-1 with the QUIJOTE line survey in the 31–50 GHz range. We observed a total of 17 transitions with J = 2 up to 13 and K = 0, 1 and 2. The observed transitions allowed us to derive a rotational temperature of 9.5 ± 0.5 K and a column density of (5.0 ± 0.5) × 10 cm. This molecule was the last non-cyclic isomer of the CH family that could be detected via radio astronomy. A computational chemistry study was performed to determine the energies of the five most stable isomers. The isomer (c-CHCCH) has a considerably higher energy than the others, and it has not yet been detected. To better understand the chemical reactions involving these species, we compared the ethynyl and cyano derivatives. The observed abundances of these species are in good agreement with the branching ratios of the formation reactions studied with our chemical model of TMC-1.We thank Ministerio de Ciencia e Innovación of Spain (MICIU) for funding support through projects PID2019-106110GB-I00, PID2019-107115GB-C21 / AEI / 10.13039/501100011033, and PID2022137980NB-100. We also thank ERC for funding through grant ERC-2013-Syg 610256-NANOCOSMOS. M.A. thanks MCIU for grant RyC-2014-16277.EDP SciencesMinisterio de Ciencia e Innovación (España)European CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2025202520242025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/379833reponame: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/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-106110GB-I00info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-107115GB-C21info:eu-repo/grantAgreement/EC/FP7/610256info:eu-repo/grantAgreement/MINECO//RYC-2014-16277http://dx.doi.org/10.1051/0004-6361/202348777Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3798332026-05-22T06:33:51Z
dc.title.none.fl_str_mv Discovery of HCCCH2 CCH in TMC-1 with the QUIJOTE line survey
title Discovery of HCCCH2 CCH in TMC-1 with the QUIJOTE line survey
spellingShingle Discovery of HCCCH2 CCH in TMC-1 with the QUIJOTE line survey
Fuentetaja, R.
Astrochemistry
Line: identification
Molecular data
ISM: molecules
ISM: individual objects: TMC-1
title_short Discovery of HCCCH2 CCH in TMC-1 with the QUIJOTE line survey
title_full Discovery of HCCCH2 CCH in TMC-1 with the QUIJOTE line survey
title_fullStr Discovery of HCCCH2 CCH in TMC-1 with the QUIJOTE line survey
title_full_unstemmed Discovery of HCCCH2 CCH in TMC-1 with the QUIJOTE line survey
title_sort Discovery of HCCCH2 CCH in TMC-1 with the QUIJOTE line survey
dc.creator.none.fl_str_mv Fuentetaja, R.
Agúndez, Marcelino
Cabezas, Carlos
Tercero, Belén
Marcelino, Nuria
Pardo Carrión, Juan Ramón
Vicente, P. de
Cernicharo, José
author Fuentetaja, R.
author_facet Fuentetaja, R.
Agúndez, Marcelino
Cabezas, Carlos
Tercero, Belén
Marcelino, Nuria
Pardo Carrión, Juan Ramón
Vicente, P. de
Cernicharo, José
author_role author
author2 Agúndez, Marcelino
Cabezas, Carlos
Tercero, Belén
Marcelino, Nuria
Pardo Carrión, Juan Ramón
Vicente, P. de
Cernicharo, José
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Astrochemistry
Line: identification
Molecular data
ISM: molecules
ISM: individual objects: TMC-1
topic Astrochemistry
Line: identification
Molecular data
ISM: molecules
ISM: individual objects: TMC-1
description 5 pages, 3 figures, 2 tables
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
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/10261/379833
url http://hdl.handle.net/10261/379833
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/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-106110GB-I00
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-107115GB-C21
info:eu-repo/grantAgreement/EC/FP7/610256
info:eu-repo/grantAgreement/MINECO//RYC-2014-16277
http://dx.doi.org/10.1051/0004-6361/202348777
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
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