Crystalline and amorphous structure of astrophysical ices
The structure of water and other ices strongly depends on the temperature at which they formed, e.g., by vapor deposition. It is amorphous if ices are formed at low temperature (e.g., 10–30 K for water ice), or crystalline if the deposition temperature is higher (140–150 K). Ices have a “polycryst...
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| Published in: | Физика низких температур |
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| Date: | 2013 |
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| Format: | Article |
| Language: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2013
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/118455 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Crystalline and amorphous structure of astrophysical ices / G. Strazzulla // Физика низких температур. — 2013. — Т. 39, № 5. — С. 556–559. — Бібліогр.: 26 назв. — англ. |
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Strazzulla, G. 2017-05-30T11:47:27Z 2017-05-30T11:47:27Z 2013 Crystalline and amorphous structure of astrophysical ices / G. Strazzulla // Физика низких температур. — 2013. — Т. 39, № 5. — С. 556–559. — Бібліогр.: 26 назв. — англ. 0132-6414 PACS: 92.40.Vv, 61.50.Ks, 61.66.–f https://nasplib.isofts.kiev.ua/handle/123456789/118455 The structure of water and other ices strongly depends on the temperature at which they formed, e.g., by vapor deposition. It is amorphous if ices are formed at low temperature (e.g., 10–30 K for water ice), or crystalline if the deposition temperature is higher (140–150 K). Ices have a “polycrystalline” structure at intermediate temperatures. The crystalline structure of ices can be damaged up to a complete amorphization by processes such as those due to energetic ion bombardment. Here I describe some experimental results obtained by ion irradiation of water and ammonia ices, two species particularly relevant in astrophysics. The results are discussed in the light of the relevance they have in astronomical environments where the actual structure of the ices depends on a competition between energetic processing that induce amorphization and thermal annealing that favors the transition towards more ordered structures. This research has been partially supported by the European COST Action CM 0805: The chemical cosmos: Understanding Chemistry in Astronomical Environments. The experimental work in Catania has been performed in the last years by the Laboratorio di Astrofisica SPerimentale (LASP) team and co-workers (G.A. Baratta, R. Brunetto, R. DiBenedetto, D. Fulvio, M. Garozzo, V. Greco, S. Ioppolo, F. Islam, Z. Kanuchova, G. Leto, M.E. Palumbo, I. Sangiorgio, F. Spinella, G. Strazzulla et al.). en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур 9th International Conference on Cryocrystals and Quantum Crystals Crystalline and amorphous structure of astrophysical ices Article published earlier |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Crystalline and amorphous structure of astrophysical ices |
| spellingShingle |
Crystalline and amorphous structure of astrophysical ices Strazzulla, G. 9th International Conference on Cryocrystals and Quantum Crystals |
| title_short |
Crystalline and amorphous structure of astrophysical ices |
| title_full |
Crystalline and amorphous structure of astrophysical ices |
| title_fullStr |
Crystalline and amorphous structure of astrophysical ices |
| title_full_unstemmed |
Crystalline and amorphous structure of astrophysical ices |
| title_sort |
crystalline and amorphous structure of astrophysical ices |
| author |
Strazzulla, G. |
| author_facet |
Strazzulla, G. |
| topic |
9th International Conference on Cryocrystals and Quantum Crystals |
| topic_facet |
9th International Conference on Cryocrystals and Quantum Crystals |
| publishDate |
2013 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
The structure of water and other ices strongly depends on the temperature at which they formed, e.g., by vapor
deposition. It is amorphous if ices are formed at low temperature (e.g., 10–30 K for water ice), or crystalline
if the deposition temperature is higher (140–150 K). Ices have a “polycrystalline” structure at intermediate temperatures.
The crystalline structure of ices can be damaged up to a complete amorphization by processes such as
those due to energetic ion bombardment. Here I describe some experimental results obtained by ion irradiation of
water and ammonia ices, two species particularly relevant in astrophysics. The results are discussed in the light
of the relevance they have in astronomical environments where the actual structure of the ices depends on a
competition between energetic processing that induce amorphization and thermal annealing that favors the transition
towards more ordered structures.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/118455 |
| citation_txt |
Crystalline and amorphous structure of astrophysical ices / G. Strazzulla // Физика низких температур. — 2013. — Т. 39, № 5. — С. 556–559. — Бібліогр.: 26 назв. — англ. |
| work_keys_str_mv |
AT strazzullag crystallineandamorphousstructureofastrophysicalices |
| first_indexed |
2025-12-07T19:32:29Z |
| last_indexed |
2025-12-07T19:32:29Z |
| _version_ |
1850879193375571969 |