Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical Modelling

Autores
Canelo, Carla; Bronfman, Leonardo; Mendoza, Edgar; Duronea, Nicolas Urbano; Merello, Manuel; Carvajal, Miguel; Friaca, Amancio; Lepine, Jacques
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Isocyanic acid (HNCO) is a simple molecule with a potential to form prebiotic and complex organic species. Using a spectral survey collected with the Atacama Pathfinder EXperiment, in this work we report the detection of 42 transitions of HNCO in the hot molecular core/outflow G331.512-0.103 (hereafter G331). The spectral lines were observed in the frequency interval ∼160–355 GHz. By means of Local Thermodynamic Equilibrium analyses, applying the rotational diagram method, we studied the excitation conditions of HNCO. The excitation temperature and column density are estimated to be Tex= 58.8 ± 2.7 K and N = (3.7 ± 0.5) × 1015 cm−2, considering beam dilution effects. The derived relative abundance is between (3.8 ± 0.5) × 10−9 and (1.4 ± 0.2) × 10−8. In comparison with other hot molecular cores, our column densities and abundances are in agreement. An update of the internal partition functions of the four CHNO isomers: HNCO; cyanic acid, HOCN; fulminic acid, HCNO; and isofulminic acid, HONC is provided. We also used the astrochemical code NAUTILUS to model and discuss HNCO abundances. The simulations could reproduce the abundances with a simple zero-dimensional model at a temperature of 60 K and for a chemical age of ∼105 yr, which is larger than the estimated dynamical age for G331. This result could suggest the need for a more robust model and even the revision of chemical reactions associated with HNCO.
Fil: Canelo, Carla. Universidade de Sao Paulo; Brasil
Fil: Bronfman, Leonardo. Universidad de Chile; Chile
Fil: Mendoza, Edgar. Universidade de Sao Paulo; Brasil
Fil: Duronea, Nicolas Urbano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Merello, Manuel. Universidad de Chile; Chile
Fil: Carvajal, Miguel. Universidad de Granada; España
Fil: Friaca, Amancio. Universidade de Sao Paulo; Brasil
Fil: Lepine, Jacques. Universidade de Sao Paulo; Brasil
Materia
MIE, moléculas
Astroquímica
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/152669
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/152669
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical ModellingCanelo, CarlaBronfman, LeonardoMendoza, EdgarDuronea, Nicolas UrbanoMerello, ManuelCarvajal, MiguelFriaca, AmancioLepine, JacquesMIE, moléculasAstroquímicahttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Isocyanic acid (HNCO) is a simple molecule with a potential to form prebiotic and complex organic species. Using a spectral survey collected with the Atacama Pathfinder EXperiment, in this work we report the detection of 42 transitions of HNCO in the hot molecular core/outflow G331.512-0.103 (hereafter G331). The spectral lines were observed in the frequency interval ∼160–355 GHz. By means of Local Thermodynamic Equilibrium analyses, applying the rotational diagram method, we studied the excitation conditions of HNCO. The excitation temperature and column density are estimated to be Tex= 58.8 ± 2.7 K and N = (3.7 ± 0.5) × 1015 cm−2, considering beam dilution effects. The derived relative abundance is between (3.8 ± 0.5) × 10−9 and (1.4 ± 0.2) × 10−8. In comparison with other hot molecular cores, our column densities and abundances are in agreement. An update of the internal partition functions of the four CHNO isomers: HNCO; cyanic acid, HOCN; fulminic acid, HCNO; and isofulminic acid, HONC is provided. We also used the astrochemical code NAUTILUS to model and discuss HNCO abundances. The simulations could reproduce the abundances with a simple zero-dimensional model at a temperature of 60 K and for a chemical age of ∼105 yr, which is larger than the estimated dynamical age for G331. This result could suggest the need for a more robust model and even the revision of chemical reactions associated with HNCO.Fil: Canelo, Carla. Universidade de Sao Paulo; BrasilFil: Bronfman, Leonardo. Universidad de Chile; ChileFil: Mendoza, Edgar. Universidade de Sao Paulo; BrasilFil: Duronea, Nicolas Urbano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Merello, Manuel. Universidad de Chile; ChileFil: Carvajal, Miguel. Universidad de Granada; EspañaFil: Friaca, Amancio. Universidade de Sao Paulo; BrasilFil: Lepine, Jacques. Universidade de Sao Paulo; BrasilWiley Blackwell Publishing, Inc2021-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/152669Canelo, Carla; Bronfman, Leonardo; Mendoza, Edgar; Duronea, Nicolas Urbano; Merello, Manuel; et al.; Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical Modelling; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 504; 3; 4-2021; 4428-44440035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab1163info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/504/3/4428/6247604?redirectedFrom=fulltextinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:35:06Zoai:ri.conicet.gov.ar:11336/152669instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:35:07.15CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical Modelling
title Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical Modelling
spellingShingle Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical Modelling
Canelo, Carla
MIE, moléculas
Astroquímica
title_short Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical Modelling
title_full Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical Modelling
title_fullStr Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical Modelling
title_full_unstemmed Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical Modelling
title_sort Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical Modelling
dc.creator.none.fl_str_mv Canelo, Carla
Bronfman, Leonardo
Mendoza, Edgar
Duronea, Nicolas Urbano
Merello, Manuel
Carvajal, Miguel
Friaca, Amancio
Lepine, Jacques
author Canelo, Carla
author_facet Canelo, Carla
Bronfman, Leonardo
Mendoza, Edgar
Duronea, Nicolas Urbano
Merello, Manuel
Carvajal, Miguel
Friaca, Amancio
Lepine, Jacques
author_role author
author2 Bronfman, Leonardo
Mendoza, Edgar
Duronea, Nicolas Urbano
Merello, Manuel
Carvajal, Miguel
Friaca, Amancio
Lepine, Jacques
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv MIE, moléculas
Astroquímica
topic MIE, moléculas
Astroquímica
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Isocyanic acid (HNCO) is a simple molecule with a potential to form prebiotic and complex organic species. Using a spectral survey collected with the Atacama Pathfinder EXperiment, in this work we report the detection of 42 transitions of HNCO in the hot molecular core/outflow G331.512-0.103 (hereafter G331). The spectral lines were observed in the frequency interval ∼160–355 GHz. By means of Local Thermodynamic Equilibrium analyses, applying the rotational diagram method, we studied the excitation conditions of HNCO. The excitation temperature and column density are estimated to be Tex= 58.8 ± 2.7 K and N = (3.7 ± 0.5) × 1015 cm−2, considering beam dilution effects. The derived relative abundance is between (3.8 ± 0.5) × 10−9 and (1.4 ± 0.2) × 10−8. In comparison with other hot molecular cores, our column densities and abundances are in agreement. An update of the internal partition functions of the four CHNO isomers: HNCO; cyanic acid, HOCN; fulminic acid, HCNO; and isofulminic acid, HONC is provided. We also used the astrochemical code NAUTILUS to model and discuss HNCO abundances. The simulations could reproduce the abundances with a simple zero-dimensional model at a temperature of 60 K and for a chemical age of ∼105 yr, which is larger than the estimated dynamical age for G331. This result could suggest the need for a more robust model and even the revision of chemical reactions associated with HNCO.
Fil: Canelo, Carla. Universidade de Sao Paulo; Brasil
Fil: Bronfman, Leonardo. Universidad de Chile; Chile
Fil: Mendoza, Edgar. Universidade de Sao Paulo; Brasil
Fil: Duronea, Nicolas Urbano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Merello, Manuel. Universidad de Chile; Chile
Fil: Carvajal, Miguel. Universidad de Granada; España
Fil: Friaca, Amancio. Universidade de Sao Paulo; Brasil
Fil: Lepine, Jacques. Universidade de Sao Paulo; Brasil
description Isocyanic acid (HNCO) is a simple molecule with a potential to form prebiotic and complex organic species. Using a spectral survey collected with the Atacama Pathfinder EXperiment, in this work we report the detection of 42 transitions of HNCO in the hot molecular core/outflow G331.512-0.103 (hereafter G331). The spectral lines were observed in the frequency interval ∼160–355 GHz. By means of Local Thermodynamic Equilibrium analyses, applying the rotational diagram method, we studied the excitation conditions of HNCO. The excitation temperature and column density are estimated to be Tex= 58.8 ± 2.7 K and N = (3.7 ± 0.5) × 1015 cm−2, considering beam dilution effects. The derived relative abundance is between (3.8 ± 0.5) × 10−9 and (1.4 ± 0.2) × 10−8. In comparison with other hot molecular cores, our column densities and abundances are in agreement. An update of the internal partition functions of the four CHNO isomers: HNCO; cyanic acid, HOCN; fulminic acid, HCNO; and isofulminic acid, HONC is provided. We also used the astrochemical code NAUTILUS to model and discuss HNCO abundances. The simulations could reproduce the abundances with a simple zero-dimensional model at a temperature of 60 K and for a chemical age of ∼105 yr, which is larger than the estimated dynamical age for G331. This result could suggest the need for a more robust model and even the revision of chemical reactions associated with HNCO.
publishDate 2021
dc.date.none.fl_str_mv 2021-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/152669
Canelo, Carla; Bronfman, Leonardo; Mendoza, Edgar; Duronea, Nicolas Urbano; Merello, Manuel; et al.; Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical Modelling; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 504; 3; 4-2021; 4428-4444
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/152669
identifier_str_mv Canelo, Carla; Bronfman, Leonardo; Mendoza, Edgar; Duronea, Nicolas Urbano; Merello, Manuel; et al.; Isocyanic acid (HNCO) in the Hot Molecular Core G331.512-0.103 : observations and Chemical Modelling; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 504; 3; 4-2021; 4428-4444
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab1163
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/504/3/4428/6247604?redirectedFrom=fulltext
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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