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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/152669
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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 Técnicas2025-09-29T10:05:24Zoai: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:34982025-09-29 10:05:24.745CONICET 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 |
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CONICET Digital (CONICET) |
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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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13.070432 |