Computational and theoretical studies of mass-spectrometric measurements of the comet halley dust composition in Vega experiments

Results of computational and theoretical studies are presented. A formulation of the problem is given and approaches to its solution are described. Brief information is given on the models, difference methods, and software designed or adapted to perform direct numerical modeling of mass-spectrometric measurements of cometary dust on PUMA instruments. The results of a number of computational experiments are presented.