Abstract The behavior of an aqueous-dominant multicomponent cometary model is examined at high doses of ionizing radiation. The system is composed of a water mixture of HCN (0.2 mol dm−3), CH3CN (0.04 mol dm−3), C2H5CN (0.02 mol dm−3), CH3OH (0.12 mol dm−3) and HCO2H (0.01 mol dm−3). It was exposed to gamma rays at doses of up to 18.5 MGy. The chemical kinetic database used in the computer treatment of experimental data consists of 79 reactions. A complex mixture of products has been synthesized: gases, amino acids, carboxylic acids and polymeric material. The results suggest that the pristine material in cometary nuclei may have been chemically altered by the action of cosmic rays and embedded radionuclides.
Radiation-induced syntheses in cometary simulated models
Advances in Space Research ; 12 , 4 ; 63-66
1991-01-01
4 pages
Article (Journal)
Electronic Resource
English
Radiation pressure force acting on cometary aggregates
Online Contents | 2007
|Radiation dosimetry and chemistry of a cometary nucleus
Elsevier | 1987
|Understanding Cometary Olivine
NTIS | 2022
|NTRS | 1989
|