Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на этот ресурс:
http://elar.urfu.ru/handle/10995/102850
Полная запись метаданных
Поле DC | Значение | Язык |
---|---|---|
dc.contributor.author | Chuang, K. -J. | en |
dc.contributor.author | Fedoseev, G. | en |
dc.contributor.author | Scirè, C. | en |
dc.contributor.author | Baratta, G. A. | en |
dc.contributor.author | Jäger, C. | en |
dc.contributor.author | Henning, T. | en |
dc.contributor.author | Linnartz, H. | en |
dc.contributor.author | Palumbo, M. E. | en |
dc.date.accessioned | 2021-08-31T15:05:40Z | - |
dc.date.available | 2021-08-31T15:05:40Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Formation of complex organic molecules in molecular clouds: Acetaldehyde, vinyl alcohol, ketene, and ethanol via the "energetic" processing of C2H2ice / K. -J. Chuang, G. Fedoseev, C. Scirè, et al. — DOI 10.1051/0004-6361/202140780 // Astronomy and Astrophysics. — 2021. — Vol. 650. — P. -. | en |
dc.identifier.issn | 46361 | - |
dc.identifier.other | Final | 2 |
dc.identifier.other | All Open Access, Green | 3 |
dc.identifier.other | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107981526&doi=10.1051%2f0004-6361%2f202140780&partnerID=40&md5=cd218c222bb403862789b45618868227 | |
dc.identifier.other | http://arxiv.org/pdf/2104.09434 | m |
dc.identifier.uri | http://elar.urfu.ru/handle/10995/102850 | - |
dc.description.abstract | Context. The simultaneous detection of organic molecules of the form C2HnO, such as ketene (CH2CO), acetaldehyde (CH3CHO), and ethanol (CH3CH2OH), toward early star-forming regions offers hints of a shared chemical history. Several reaction routes have been proposed and experimentally verified under various interstellar conditions to explain the formation pathways involved. Most noticeably, the non-energetic processing of C2H2 ice with OH-radicals and H-atoms was shown to provide formation routes to ketene, acetaldehyde, ethanol, and vinyl alcohol (CH2CHOH) along the H2O formation sequence on grain surfaces in translucent clouds. Aims. In this work, the non-energetic formation scheme is extended with laboratory measurements focusing on the energetic counterpart, induced by cosmic rays penetrating the H2O-rich ice mantle. The focus here is on the H+ radiolysis of interstellar C2H2:H2O ice analogs at 17 K. Methods. Ultra-high vacuum experiments were performed to investigate the 200 keV H+ radiolysis chemistry of predeposited C2H2:H2O ices, both as mixed and layered geometries. Fourier-transform infrared spectroscopy was used to monitor in situ newly formed species as a function of the accumulated energy dose (or H+ fluence). The infrared spectral assignments are further confirmed in isotope labeling experiments using H218O. Results. The energetic processing of C2H2:H2O ice not only results in the formation of (semi-) saturated hydrocarbons (C2H4 and C2H6) and polyynes as well as cumulenes (C4H2 and C4H4), but it also efficiently forms O-bearing COMs, including vinyl alcohol, ketene, acetaldehyde, and ethanol, for which the reaction cross-section and product composition are derived. A clear composition transition of the product, from H-poor to H-rich species, is observed as a function of the accumulated energy dose. Furthermore, the astronomical relevance of the resulting reaction network is discussed. © K.-J. Chuang et al. 2021. | en |
dc.format.mimetype | application/pdf | en |
dc.language.iso | en | en |
dc.publisher | EDP Sciences | en |
dc.rights | info:eu-repo/semantics/openAccess | en |
dc.source | Astron. Astrophys. | 2 |
dc.source | Astronomy and Astrophysics | en |
dc.subject | ASTROCHEMISTRY | en |
dc.subject | COSMIC RAYS | en |
dc.subject | INFRARED: ISM | en |
dc.subject | ISM: MOLECULES | en |
dc.subject | METHODS: LABORATORY: SOLID STATE | en |
dc.subject | MOLECULAR PROCESSES | en |
dc.subject | ACETALDEHYDE | en |
dc.subject | CHEMICAL DETECTION | en |
dc.subject | COSMIC RAY MEASUREMENT | en |
dc.subject | COSMOLOGY | en |
dc.subject | ETHANOL | en |
dc.subject | ETHYLENE | en |
dc.subject | FOURIER TRANSFORM INFRARED SPECTROSCOPY | en |
dc.subject | FREE RADICALS | en |
dc.subject | MOLECULES | en |
dc.subject | PETROLEUM TAR | en |
dc.subject | RADIATION CHEMISTRY | en |
dc.subject | RADIOLYSIS | en |
dc.subject | COMPLEX ORGANIC MOLECULES | en |
dc.subject | ISOTOPE LABELING EXPERIMENTS | en |
dc.subject | LABORATORY MEASUREMENTS | en |
dc.subject | PRODUCT COMPOSITION | en |
dc.subject | REACTION CROSS-SECTION | en |
dc.subject | SATURATED HYDROCARBONS | en |
dc.subject | SIMULTANEOUS DETECTION | en |
dc.subject | STAR-FORMING REGION | en |
dc.subject | ICE | en |
dc.title | Formation of complex organic molecules in molecular clouds: Acetaldehyde, vinyl alcohol, ketene, and ethanol via the "energetic" processing of C2H2ice | en |
dc.type | Article | en |
dc.type | info:eu-repo/semantics/article | en |
dc.type | info:eu-repo/semantics/publishedVersion | en |
dc.identifier.doi | 10.1051/0004-6361/202140780 | - |
dc.identifier.scopus | 85107981526 | - |
local.contributor.employee | Chuang, K.-J., Lab. Astrophys. Grp. of the Max Planck Inst. for Astronomy at the Friedrich Schiller University Jena, Institute of Solid State Physics, Helmholtzweg 3, Jena, 07743, Germany, Laboratory for Astrophysics, Leiden Observatory, Leiden University, PO Box 9513, Leiden, 2300 RA, Netherlands | |
local.contributor.employee | Fedoseev, G., Laboratory for Astrophysics, Leiden Observatory, Leiden University, PO Box 9513, Leiden, 2300 RA, Netherlands, INAF - Osservatorio Astrofisico di Catania, via Santa Sofia 78, Catania, 95123, Italy, Research Laboratory for Astrochemistry, Ural Federal University, Kuibysheva St. 48, Ekaterinburg, 620026, Russian Federation | |
local.contributor.employee | Scirè, C., INAF - Osservatorio Astrofisico di Catania, via Santa Sofia 78, Catania, 95123, Italy | |
local.contributor.employee | Baratta, G.A., INAF - Osservatorio Astrofisico di Catania, via Santa Sofia 78, Catania, 95123, Italy | |
local.contributor.employee | Jäger, C., Lab. Astrophys. Grp. of the Max Planck Inst. for Astronomy at the Friedrich Schiller University Jena, Institute of Solid State Physics, Helmholtzweg 3, Jena, 07743, Germany | |
local.contributor.employee | Henning, T., Max Planck Institute for Astronomy, Königstuhl 17, Heidelberg, 69117, Germany | |
local.contributor.employee | Linnartz, H., Laboratory for Astrophysics, Leiden Observatory, Leiden University, PO Box 9513, Leiden, 2300 RA, Netherlands | |
local.contributor.employee | Palumbo, M.E., INAF - Osservatorio Astrofisico di Catania, via Santa Sofia 78, Catania, 95123, Italy | |
local.volume | 650 | - |
dc.identifier.wos | 000663017300003 | - |
local.contributor.department | Lab. Astrophys. Grp. of the Max Planck Inst. for Astronomy at the Friedrich Schiller University Jena, Institute of Solid State Physics, Helmholtzweg 3, Jena, 07743, Germany | |
local.contributor.department | Laboratory for Astrophysics, Leiden Observatory, Leiden University, PO Box 9513, Leiden, 2300 RA, Netherlands | |
local.contributor.department | INAF - Osservatorio Astrofisico di Catania, via Santa Sofia 78, Catania, 95123, Italy | |
local.contributor.department | Research Laboratory for Astrochemistry, Ural Federal University, Kuibysheva St. 48, Ekaterinburg, 620026, Russian Federation | |
local.contributor.department | Max Planck Institute for Astronomy, Königstuhl 17, Heidelberg, 69117, Germany | |
local.identifier.pure | 22105709 | - |
local.identifier.pure | f9d6a5ad-3a42-4cd7-8b79-28b5209fc74b | uuid |
local.identifier.eid | 2-s2.0-85107981526 | - |
local.identifier.wos | WOS:000663017300003 | - |
Располагается в коллекциях: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
Файлы этого ресурса:
Файл | Описание | Размер | Формат | |
---|---|---|---|---|
2-s2.0-85107981526.pdf | 673,86 kB | Adobe PDF | Просмотреть/Открыть |
Все ресурсы в архиве электронных ресурсов защищены авторским правом, все права сохранены.