First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH)
Producción Científica
| Authors: | ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; |
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| Format: | Article |
| Status: | Published version |
| Publication date: | 2023 |
| Country: | España |
| Institution: | Universidad de Valladolid |
| Repository: | UVaDOC. Repositorio Documental de la Universidad de Valladolid |
| OAI Identifier: | oai:uvadoc.uva.es:10324/61057 |
| Online Access: | https://doi.org/10.3847/2041-8213/ace977 https://uvadoc.uva.es/handle/10324/61057 |
| Access Level: | Open access |
| Keyword: | Isómero de glicina Glycine Isomer Glycolamide (NH2C(O)CH2OH) 21 Astronomía y Astrofísica |
| _version_ | 1878741117689659392 |
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| author | Rivilla, Víctor M. |
| 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 |
| author_browse | Alonso Hernández, José Luis Andrés, David San Colzi, Laura Jiménez Serra, Izaskun López Gallifa, Álvaro Martín Pintado, Jesús Martín, Sergio Martínez Henares, Antonio Massalkhi, Sarah Megías, Andrés Requena Torres, Miguel A. Rivilla, Víctor M. Sanz Novo, Miguel Tercero, Belén Vicente, Pablo de Zeng, Shaoshan |
| 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 |
| collection | UVaDOC. Repositorio Documental de la Universidad de Valladolid |
| description | Producción Científica |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_df70a34a3a8c61ba86534c5f26dd2ce7 |
| institution | Universidad de Valladolid |
| instname_str | Universidad de Valladolid |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:uvadoc.uva.es:10324/61057 |
| publishDate | 2023 |
| publishDateSort | 2023 |
| publisher | IOP Publishing American Astronomical Society |
| publisherStr | American Astronomical Society IOP Publishing |
| reponame_str | UVaDOC. Repositorio Documental de la Universidad de Valladolid |
| spelling | First Glycine Isomer Detected in the Interstellar Medium: Glycolamide (NH2C(O)CH2OH) 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 Isómero de glicina Glycine Isomer Glycolamide (NH2C(O)CH2OH) 21 Astronomía y Astrofísica Producción Científica We 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 Novo Ministerio 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 Publishing American Astronomical Society https://doi.org/10.3847/2041-8213/ace977 https://uvadoc.uva.es/handle/10324/61057 |
| 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 |
| status_str | publishedVersion |
| title | 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_short | 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) |
| topic | Isómero de glicina Glycine Isomer Glycolamide (NH2C(O)CH2OH) 21 Astronomía y Astrofísica |
| topic_facet | Isómero de glicina Glycine Isomer Glycolamide (NH2C(O)CH2OH) 21 Astronomía y Astrofísica |
| url | https://doi.org/10.3847/2041-8213/ace977 https://uvadoc.uva.es/handle/10324/61057 |