Formation of CO and CO2Molecules by Ion Irradiation of Water Ice–covered Hydrogenated Carbon Grains

2004 ◽  
Vol 615 (2) ◽  
pp. 1073-1080 ◽  
Author(s):  
V. Mennella ◽  
M. E. Palumbo ◽  
G. A. Baratta
Keyword(s):  
Ion Irradiation ◽  
Water Ice

ION IRRADIATION OF H2-LADEN POROUS WATER-ICE FILMS: IMPLICATIONS FOR INTERSTELLAR ICES

2015 ◽  
Vol 811 (2) ◽  
pp. 120 ◽  
Author(s):  
U. Raut ◽  
E. H. Mitchell ◽  
R. A. Baragiola
Keyword(s):  
Ion Irradiation ◽  
Water Ice ◽  
Ice Films ◽  
Interstellar Ices

scholarly journals Production of Oxidants by Ion Bombardment of Icy Moons in the Outer Solar System

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Philippe Boduch ◽  
Enio Frota da Silveira ◽  
Alicja Domaracka ◽  
Oscar Gomis ◽  
Xue Yang Lv ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Peroxide ◽  
Solar System ◽  
Ion Irradiation ◽  
Pure Water ◽  
Outer Solar System ◽  
Water Ice ◽  
Icy Moons ◽  
Different Temperatures ◽  
Frozen Gases

Our groups in Brazil, France and Italy have been active, among others in the world, in performing experiments on physical-chemical effects induced by fast ions colliding with solids (frozen gases, carbonaceous and organic materials, silicates, etc.) of astrophysical interest. The used ions span a very large range of energies, from a few keV to hundreds MeV. Here we present a summary of the results obtained so far on the formation of oxidants (hydrogen peroxide and ozone) after ion irradiation of frozen water, carbon dioxide and their mixtures. Irradiation of pure water ice produces hydrogen peroxide whatever is the used ion and at different temperatures. Irradiation of carbon dioxide and water frozen mixtures result in the production of molecules among which hydrogen peroxide and ozone. The experimental results are discussed in the light of the relevance they have to support the presence of an energy source for biosphere on Europa and other icy moons in the outer Solar System.

Low energy 13C+ and 13C2+ ion irradiation of water ice

2007 ◽  
Vol 9 (22) ◽  
pp. 2886 ◽  
Author(s):  
Anita Dawes ◽  
Adam Hunniford ◽  
Philip D. Holtom ◽  
Robin J. Mukerji ◽  
Robert W. McCullough ◽  
...  
Keyword(s):  
Ion Irradiation ◽  
Low Energy ◽  
Water Ice

Synthesis of hydrogen peroxide in water ice by ion irradiation

Icarus ◽  
2006 ◽  
Vol 180 (1) ◽  
pp. 265-273 ◽  
Author(s):  
M LOEFFLER ◽  
U RAUT ◽  
R VIDAL ◽  
R BARAGIOLA ◽  
R CARLSON
Keyword(s):  
Hydrogen Peroxide ◽  
Ion Irradiation ◽  
Water Ice

scholarly journals Heavy ion irradiation of crystalline water ice

2015 ◽  
Vol 576 ◽  
pp. A125 ◽  
Author(s):  
E. Dartois ◽  
B. Augé ◽  
P. Boduch ◽  
R. Brunetto ◽  
M. Chabot ◽  
...  
Keyword(s):  
Ion Irradiation ◽  
Heavy Ion ◽  
Water Ice ◽  
Heavy Ion Irradiation ◽  
Crystalline Water

Nitrogen condensation on water ice

2003 ◽  
Vol 81 (1-2) ◽  
pp. 217-224 ◽  
Author(s):  
M E Palumbo ◽  
G Strazzulla
Keyword(s):  
Narrow Band ◽  
Ion Irradiation ◽  
Pure Water ◽  
Kuiper Belt ◽  
Outer Solar System ◽  
Infrared Absorption Spectroscopy ◽  
Dangling Bonds ◽  
Warm Up ◽  
Water Ice ◽  
Water Band

We studied, by infrared absorption spectroscopy, icy samples (16 K) of pure water, a mixture N2:H2O=100:1, and a sample made of N2 condensed on water ice and diffused in it after warm up to 30 K. We concentrated our efforts in two spectral regions around 3700 cm–1 where the feature due to the O–H dangling bonds in porous amorphous water falls and around 5000 cm–1 where a broad water band is present. We found that in the N2:H2=100:1 mixture the profile of the broad water feature at about 5000 cm–1 dramatically changed to a very narrow band at about 5300 cm–1. When N2 diffuses in water ice a feature at about 5300 cm–1 appears along with the broad 5000 cm–1 band. We also studied some of the effects of ion irradiation (Ar++, 60 keV ions) on these icy samples. We found that after processing the feature due to the O–H dangling bonds it reduced in intensity and eventually disappeared. Here we present the experimental results, discuss their astrophysical relevance and suggest that a band at about 5300 cm–1 (1.88 µm) should be searched for on icy surfaces in the outer Solar System, namely Pluto, Triton, Edgeworth–Kuiper Belt Objects, and Centaurs. PACS No.: 68.43Pg

scholarly journals Swift heavy ion irradiation of water ice from MeV to GeV energies

2013 ◽  
Vol 557 ◽  
pp. A97 ◽  
Author(s):  
E. Dartois ◽  
J. J. Ding ◽  
A. L.F. de Barros ◽  
P. Boduch ◽  
R. Brunetto ◽  
...  
Keyword(s):  
Ion Irradiation ◽  
Heavy Ion ◽  
Swift Heavy Ion Irradiation ◽  
Water Ice ◽  
Heavy Ion Irradiation ◽  
Swift Heavy Ion
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