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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| Дата: | 2013 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2013
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| Назва видання: | Физика низких температур |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/118455 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Crystalline and amorphous structure of astrophysical ices / G. Strazzulla // Физика низких температур. — 2013. — Т. 39, № 5. — С. 556–559. — Бібліогр.: 26 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1184552017-05-31T03:02:41Z Crystalline and amorphous structure of astrophysical ices Strazzulla, G. 9th International Conference on Cryocrystals and Quantum Crystals 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. 2013 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/118455 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
9th International Conference on Cryocrystals and Quantum Crystals 9th International Conference on Cryocrystals and Quantum Crystals |
| spellingShingle |
9th International Conference on Cryocrystals and Quantum Crystals 9th International Conference on Cryocrystals and Quantum Crystals Strazzulla, G. Crystalline and amorphous structure of astrophysical ices Физика низких температур |
| 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. |
| format |
Article |
| author |
Strazzulla, G. |
| author_facet |
Strazzulla, G. |
| author_sort |
Strazzulla, G. |
| title |
Crystalline and amorphous structure of astrophysical ices |
| 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 |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2013 |
| topic_facet |
9th International Conference on Cryocrystals and Quantum Crystals |
| url |
http://dspace.nbuv.gov.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. |
| series |
Физика низких температур |
| work_keys_str_mv |
AT strazzullag crystallineandamorphousstructureofastrophysicalices |
| first_indexed |
2023-10-18T20:32:09Z |
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2023-10-18T20:32:09Z |
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1796150456625397760 |