Astrobiology studies and extraterrestrial sample analysis at the Laboratory for Experimental Astrophysics - Catania
Date Issued
2021
Abstract
Energetic ions (galactic cosmic rays, solar wind, energetic solar ions) and UV
photons are believed to significantly contribute to the evolution of solid matter in astrophysical
environments. At the Laboratory for Experimental Astrophysics at INAF-Osservatorio
Astrofisico di Catania samples are exposed to space conditions such as high vacuum, low
temperature (15-300 K), UV irradiation (266 nm and Lyman-alpha at 121.6 nm) and fast ion
bombardment (60-400 keV) and are analyzed in situ by Infrared and Raman spectroscopy.
Ices, carbons and silicates have been processed and analyzed. In addition, extraterrestrial
dust particles (e.g. IDPs, cometary dust particles, and meteorites) have been characterized
by non destructive techniques such as micro-Raman and UV-Vis-IR spectroscopy.
Furthermore, spectra of extraterrestrial samples have been compared to spectra of laboratory
analogues. Here we present some of the most recent results relevant to Astrobiology
and the ongoing upgrade of the experimental set-up.
Coverage
1st Italian Space Agency workshop on Astrobiology
All editors
Negri, B.; Ammannito, E.; Pacelli, C.
Volume
92
Start page
158
Conferenece
1st Italian Space Agency workshop on Astrobiology
Issn Identifier
0037-8720
Ads BibCode
2021MmSAI..92b.158P
Rights
open.access
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