First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH)
Producción Científica
| Autores: | , , , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universidad de Valladolid |
| Repositorio: | UVaDOC. Repositorio Documental de la Universidad de Valladolid |
| OAI Identifier: | oai:uvadoc.uva.es:10324/61057 |
| Acceso en línea: | https://doi.org/10.3847/2041-8213/ace977 https://uvadoc.uva.es/handle/10324/61057 |
| Access Level: | acceso abierto |
| Palabra clave: | Isómero de glicina Glycine Isomer Glycolamide (NH2C(O)CH2OH) 21 Astronomía y Astrofísica |
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First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH)Rivilla, Víctor M.Sanz Novo, MiguelJiménez Serra, IzaskunMartín Pintado, JesúsColzi, LauraZeng, ShaoshanMegías, AndrésLópez Gallifa, ÁlvaroMartínez Henares, AntonioMassalkhi, SarahTercero, BelénVicente, Pablo deMartín, SergioAndrés, David SanRequena Torres, Miguel A.Alonso Hernández, José LuisIsómero de glicinaGlycine IsomerGlycolamide (NH2C(O)CH2OH)21 Astronomía y AstrofísicaProducción CientíficaWe report the first detection in the interstellar medium (ISM) of a C2H5O2N isomer: syn-glycolamide (NH2C(O)CH2OH). The exquisite sensitivity at sub-mK levels of an ultradeep spectral survey carried out with the Yebes 40 m and IRAM 30 m telescopes toward the G+0.693–0.027 molecular cloud has allowed us to unambiguously identify multiple transitions of this species. We derived a column density of (7.4 ± 0.7) × 1012 cm−2, which implies a molecular abundance with respect to H2 of 5.5 × 10−11. The other C2H5O2N isomers, including the higher-energy anti conformer of glycolamide and two conformers of glycine, were not detected. The upper limit derived for the abundance of glycine indicates that this amino acid is surely less abundant than its isomer glycolamide in the ISM. The abundances of the C2H5O2N isomers cannot be explained in terms of thermodynamic equilibrium; thus, chemical kinetics need to be invoked. While the low abundance of glycine might not be surprising, based on the relative low abundances of acids in the ISM compared to other compounds (e.g., alcohols, aldehydes, or amines), several chemical pathways can favor the formation of its isomer glycolamide. It can be formed through radical–radical reactions on the surface of dust grains. The abundances of these radicals can be significantly boosted in an environment affected by a strong ultraviolet field induced by cosmic rays, such as that expected in G+0.693–0.027. Therefore, as shown by several recent molecular detections toward this molecular cloud, it stands out as the best target to discover new species with carbon, oxygen, and nitrogen with increasing chemical complexity.Ministerio de Universidades (MIU) / Universidad de Valladolid: contrato postdoctoral Margarita Salas de Miguel Sanz NovoMinisterio de Ciencia e Innovación (MICIN) / Agencia Estatal de Investigación (AEI): contrato posdoctoral Ramón y Cajal de Víctor Manuel Rivilla (RYC2020-029387-I) (MCIU/AEI/10.13039/501100011033)Ministerio de Ciencia e Innovación (MICIN) / Agencia Estatal de Investigación (AEI): PID2020-117742GB-I00 (MICIN/AEI/10.13039/501100011033)Ministerio de Ciencia e Innovación (MICIN) / Agencia Estatal de Investigación (AEI): PID2019-107115GB-C21 (MICIN/AEI/10.13039/501100011033)Ministerio de Ciencia e Innovación (MICIN) / Agencia Estatal de Investigación (AEI): PID2019-106235GB-I00 (MICIN/AEI/10.13039/501100011033)IOP PublishingAmerican Astronomical Society2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.3847/2041-8213/ace977https://uvadoc.uva.es/handle/10324/61057reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolidinstname:Universidad de ValladolidIngléshttps://iopscience.iop.org/article/10.3847/2041-8213/ace977info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/oai:uvadoc.uva.es:10324/610572026-06-13T12:44:47Z |
| dc.title.none.fl_str_mv |
First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH) |
| title |
First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH) |
| spellingShingle |
First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH) Rivilla, Víctor M. Isómero de glicina Glycine Isomer Glycolamide (NH2C(O)CH2OH) 21 Astronomía y Astrofísica |
| title_short |
First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH) |
| title_full |
First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH) |
| title_fullStr |
First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH) |
| title_full_unstemmed |
First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH) |
| title_sort |
First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH) |
| dc.creator.none.fl_str_mv |
Rivilla, Víctor M. Sanz Novo, Miguel Jiménez Serra, Izaskun Martín Pintado, Jesús Colzi, Laura Zeng, Shaoshan Megías, Andrés López Gallifa, Álvaro Martínez Henares, Antonio Massalkhi, Sarah Tercero, Belén Vicente, Pablo de Martín, Sergio Andrés, David San Requena Torres, Miguel A. Alonso Hernández, José Luis |
| author |
Rivilla, Víctor M. |
| author_facet |
Rivilla, Víctor M. Sanz Novo, Miguel Jiménez Serra, Izaskun Martín Pintado, Jesús Colzi, Laura Zeng, Shaoshan Megías, Andrés López Gallifa, Álvaro Martínez Henares, Antonio Massalkhi, Sarah Tercero, Belén Vicente, Pablo de Martín, Sergio Andrés, David San Requena Torres, Miguel A. Alonso Hernández, José Luis |
| author_role |
author |
| author2 |
Sanz Novo, Miguel Jiménez Serra, Izaskun Martín Pintado, Jesús Colzi, Laura Zeng, Shaoshan Megías, Andrés López Gallifa, Álvaro Martínez Henares, Antonio Massalkhi, Sarah Tercero, Belén Vicente, Pablo de Martín, Sergio Andrés, David San Requena Torres, Miguel A. Alonso Hernández, José Luis |
| author2_role |
author author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Isómero de glicina Glycine Isomer Glycolamide (NH2C(O)CH2OH) 21 Astronomía y Astrofísica |
| topic |
Isómero de glicina Glycine Isomer Glycolamide (NH2C(O)CH2OH) 21 Astronomía y Astrofísica |
| description |
Producción Científica |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://doi.org/10.3847/2041-8213/ace977 https://uvadoc.uva.es/handle/10324/61057 |
| url |
https://doi.org/10.3847/2041-8213/ace977 https://uvadoc.uva.es/handle/10324/61057 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
https://iopscience.iop.org/article/10.3847/2041-8213/ace977 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ |
| eu_rights_str_mv |
openAccess |
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http://creativecommons.org/licenses/by/4.0/ |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
IOP Publishing American Astronomical Society |
| publisher.none.fl_str_mv |
IOP Publishing American Astronomical Society |
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reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolid instname:Universidad de Valladolid |
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Universidad de Valladolid |
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UVaDOC. Repositorio Documental de la Universidad de Valladolid |
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UVaDOC. Repositorio Documental de la Universidad de Valladolid |
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