On possibility of nucleosynthesis during accretion on a compact star

Constructing a quantitative model of disk accretion on a neutron star, we obtain high densities and temperatures that are interesting for considering nucleosynthesis. The aim of the research is to present two mechanisms of deceleration of rotating accreting matter around a neutron star: a Kepler disk with the development of large-scale vortex structures due to tidal effects and a boundary layer with mass influx during the development of small-scale instability. For the parameters obtained for the accreting matter, we discuss the possibility of nucleosynthesis.