DC3N observations towards high-mass star-forming regions

We present the study of deuteration of cyanoacetylene (HC3N) towards a sample of 28 highmass star-forming cores divided into different evolutionary stages, from starless to evolved protostellar cores. We report for the first time the detection of DC3N towards 15 high-mass cores. The abundance ratios...

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Authors: Rivilla, V. M., Colzi, L., Fontani, F., Melosso, M., Caselli, P., Bizzocchi, L., Tamassia, F., Dore, L.
Format: article
Status:Versión enviada para evaluación y publicación
Publication Date:2020
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/416029
Online Access:http://hdl.handle.net/10261/416029
https://api.elsevier.com/content/abstract/scopus_id/85088388811
Access Level:Open access
Keyword:Stars: Massive
Astrochemistry
ISM: Abundances
ISM: Molecules
Stars: Formation
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spelling DC3N observations towards high-mass star-forming regionsRivilla, V. M.Colzi, L.Fontani, F.Melosso, M.Caselli, P.Bizzocchi, L.Tamassia, F.Dore, L.Stars: MassiveAstrochemistryISM: AbundancesISM: MoleculesStars: FormationWe present the study of deuteration of cyanoacetylene (HC3N) towards a sample of 28 highmass star-forming cores divided into different evolutionary stages, from starless to evolved protostellar cores. We report for the first time the detection of DC3N towards 15 high-mass cores. The abundance ratios of DC3N with respect HC3N range in the interval 0.003-0.022, lower than those found in low-mas protostars and dark clouds. No significant trend with the evolutionary stage, or with the kinetic temperature of the region, has been found.We compare the level of deuteration of HC3N with those of other molecules towards the same sample, finding weak correlation with species formed only or predominantly in gas phase (N2H+ and HNC, respectively), and no correlation with species formed only or predominantly on dust grains (CH3OH and NH3, respectively). We also present a single-dish map of DC3N towards the protocluster IRAS 05358+3543, which shows that DC3N traces an extended envelope (∼0.37 pc) and peaks towards two cold condensations separated from the positions of the protostars and the dust continuum. The observations presented in this work suggest that deuteration of HC3N is produced in the gas of the cold outer parts of massive star-forming clumps, giving us an estimate of the deuteration factor prior to the formation of denser gas.We acknowledge the anonymous reviewer for her/his careful reading of the manuscript and her/his useful comments. VMR has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement no. 664931. LC acknowledges support from the Italian Ministero dell’Istruzione, Università e Ricerca through the grant Progetti Premiali 2012 – iALMA (CUP C52I13000140001). This work is based on observations carried out under projects number 129-12 and 040-19 with the IRAM 30-m telescope. IRAM is supported by INSU,CNRS (France), MPG (Germany), and Instituto Geográfico Nacional (IGN) (Spain). This publication has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement no. 730562 [RadioNet]. LC and FF thank the IRAM staff for the precious help provided during the observations. We warmly thank Xing ‘Walker’ Lu and Qizhou Zhang for sharing with us their VLA map of the 05358+3543 high-mass protocluster.NoRoyal Astronomical SocietyEuropean CommissionMinistero dell'Istruzione e del MeritoConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Preprintinfo:eu-repo/semantics/submittedVersionapplication/pdfhttp://hdl.handle.net/10261/416029https://api.elsevier.com/content/abstract/scopus_id/85088388811reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/664931info:eu-repo/grantAgreement/EC/H2020/730562https://doi.org/10.1093/mnras/staa1616Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4160292026-05-22T06:33:51Z
dc.title.none.fl_str_mv DC3N observations towards high-mass star-forming regions
title DC3N observations towards high-mass star-forming regions
spellingShingle DC3N observations towards high-mass star-forming regions
Rivilla, V. M.
Stars: Massive
Astrochemistry
ISM: Abundances
ISM: Molecules
Stars: Formation
title_short DC3N observations towards high-mass star-forming regions
title_full DC3N observations towards high-mass star-forming regions
title_fullStr DC3N observations towards high-mass star-forming regions
title_full_unstemmed DC3N observations towards high-mass star-forming regions
title_sort DC3N observations towards high-mass star-forming regions
dc.creator.none.fl_str_mv Rivilla, V. M.
Colzi, L.
Fontani, F.
Melosso, M.
Caselli, P.
Bizzocchi, L.
Tamassia, F.
Dore, L.
author Rivilla, V. M.
author_facet Rivilla, V. M.
Colzi, L.
Fontani, F.
Melosso, M.
Caselli, P.
Bizzocchi, L.
Tamassia, F.
Dore, L.
author_role author
author2 Colzi, L.
Fontani, F.
Melosso, M.
Caselli, P.
Bizzocchi, L.
Tamassia, F.
Dore, L.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministero dell'Istruzione e del Merito
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Stars: Massive
Astrochemistry
ISM: Abundances
ISM: Molecules
Stars: Formation
topic Stars: Massive
Astrochemistry
ISM: Abundances
ISM: Molecules
Stars: Formation
description We present the study of deuteration of cyanoacetylene (HC3N) towards a sample of 28 highmass star-forming cores divided into different evolutionary stages, from starless to evolved protostellar cores. We report for the first time the detection of DC3N towards 15 high-mass cores. The abundance ratios of DC3N with respect HC3N range in the interval 0.003-0.022, lower than those found in low-mas protostars and dark clouds. No significant trend with the evolutionary stage, or with the kinetic temperature of the region, has been found.We compare the level of deuteration of HC3N with those of other molecules towards the same sample, finding weak correlation with species formed only or predominantly in gas phase (N2H+ and HNC, respectively), and no correlation with species formed only or predominantly on dust grains (CH3OH and NH3, respectively). We also present a single-dish map of DC3N towards the protocluster IRAS 05358+3543, which shows that DC3N traces an extended envelope (∼0.37 pc) and peaks towards two cold condensations separated from the positions of the protostars and the dust continuum. The observations presented in this work suggest that deuteration of HC3N is produced in the gas of the cold outer parts of massive star-forming clumps, giving us an estimate of the deuteration factor prior to the formation of denser gas.
publishDate 2020
dc.date.none.fl_str_mv 2020
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Preprint
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/416029
https://api.elsevier.com/content/abstract/scopus_id/85088388811
url http://hdl.handle.net/10261/416029
https://api.elsevier.com/content/abstract/scopus_id/85088388811
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#
info:eu-repo/grantAgreement/EC/H2020/664931
info:eu-repo/grantAgreement/EC/H2020/730562
https://doi.org/10.1093/mnras/staa1616
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Royal Astronomical Society
publisher.none.fl_str_mv Royal Astronomical Society
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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