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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/27253
Title: Modification of ices by cosmic rays and solar wind
Authors: Rothard, Hermann
Domaracka, Alicja
Boduch, Philippe
PALUMBO, Maria Elisabetta 
STRAZZULLA, Giovanni
da Silveira, Enio F.
Dartois, Emmanuel
Issue Date: 2017
Journal: JOURNAL OF PHYSICS. B, ATOMIC MOLECULAR AND OPTICAL PHYSICS 
Number: 50
Issue: 6
First Page: 062001
Abstract: Astrophysical ices are exposed to different radiation fields including photons, electrons and ions. The latter stem from interstellar cosmic rays (CR), the solar and stellar winds, shock waves or are trapped in the magnetospheres of giant planets. We briefly discuss the physics of energy deposition by ion ir radiation in condensed matter and experimental methods to study the induced effects. We then present results on radiation effects such as sputtering, amorphisation and compaction, dissociation of molecules, formation of new molecular species after radiolysis and by implantation of ions. The formation and radio-resistance of organic molecules, related to the question of the initial conditions for the emergence of life, are briefly discussed. This review is not meant to be comprehensive, but rather focusses on recent findings, with special emphasis on experiments with heavy multiply charged ion beams. These experiments aim in particular at simulating the effects of CRs on icy grains in dense molecular clouds, and on the formation of molecules on icy bodies in the Solar System.
URI: http://hdl.handle.net/20.500.12386/27253
URL: https://iopscience.iop.org/article/10.1088/1361-6455/50/6/062001
ISSN: 0953-4075
DOI: 10.1088/1361-6455/50/6/062001
Bibcode ADS: 2017JPhB...50f2001R
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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