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Swift heavy ion modifications of astrophysical water ice

Authors :
Dartois, Enmanuel
Thomas, Jean Charles
Rothard, Hermann
Domaracka, Alicja
Da silveira, Énio Frota
Chabot, Marin
Ding, Jing Jie
Xue Yang, LV
Pino, Thomas
Kamalou, Omar
Basile, Augé
Godard, Marie
Brunetto, Rosario
Mejia Guaman, Christian Fernando
Ferreira de Barros, Ana Lucia
Boduch, Philippe
Dartois, Enmanuel
Thomas, Jean Charles
Rothard, Hermann
Domaracka, Alicja
Da silveira, Énio Frota
Chabot, Marin
Ding, Jing Jie
Xue Yang, LV
Pino, Thomas
Kamalou, Omar
Basile, Augé
Godard, Marie
Brunetto, Rosario
Mejia Guaman, Christian Fernando
Ferreira de Barros, Ana Lucia
Boduch, Philippe
Source :
Interactions with Materials and Atoms
Publication Year :
2015

Abstract

In the relatively shielded environments provided by interstellar dense clouds in our Galaxy, infrared astronomical observations have early revealed the presence of low temperature (10–100 K) ice mantles covering tiny grain “cores” composed of more refractory material. These ices are of specific interest because they constitute an interface between a solid phase under complex evolution triggered by energetic processes and surface reactions, with a rich chemistry taking place in the gas phase. The interstellar ice mantles present in these environments are immersed, in addition to other existing radiations fields, in a flux of cosmic ray particles that can produce new species via radiolysis processes, but first affects their structure, which may change and also induces desorption of molecules and radicals from these grains. Theses cosmic rays are simulated by swift ions in the laboratory for a better understanding of astrophysical processes.

Details

Database :
OAIster
Journal :
Interactions with Materials and Atoms
Notes :
es_ES
Publication Type :
Electronic Resource
Accession number :
edsoai.on1257704674
Document Type :
Electronic Resource