Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010iaus..265..428d&link_type=abstract
Chemical Abundances in the Universe: Connecting First Stars to Planets, Proceedings of the International Astronomical Union, IAU
Astronomy and Astrophysics
Astrophysics
Astrochemistry, Methods: Laboratory, Ism: Clouds, Cosmic Rays
Scientific paper
In order to simulate the effects of the heavy ion component of cosmic rays on ices in astrophysical environments, the CO and CO2 ices were irradiated with swift nickel ions in the electronic energy loss regime. The ices were prepared by condensing gas onto a CsI substrate at a temperature of 14 K and analyzed by means of infrared (FTIR) spectroscopy. The physical process of deposition by Ni ions is similar to more important and abundant heavy cosmic rays such as Fe ions. Dissociation of the ice molecules, and formation of new molecules were observed. Also, sputtering (leading to desorption of molecules from the solid surface to the gas phase) was observed. It was found that the sputtering yield due to heavy ions cannot be neglected with respect to desorption induced by weakly ionizing particles such as UV photons and protons.
Balanzat Emmanuel
Boduch Philippe
da Silveira Enio F.
Dartois Emmanuel
Domaracka Alicja
No associations
LandOfFree
Irradiation effects in CO and CO2 ices induced by swift heavy Ni ions at 46 MeV and 537 MeV does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Irradiation effects in CO and CO2 ices induced by swift heavy Ni ions at 46 MeV and 537 MeV, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Irradiation effects in CO and CO2 ices induced by swift heavy Ni ions at 46 MeV and 537 MeV will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-883287