Excitation of lowest autoionization states in helium-like ions by photon scattering

High-frequency photon scattering by a two-electron ion with excitation of s inglet autoionization states located below the first excited level of the r espective one-electron ion are considered, Angular distributions of scatter ed photons and total cross sections are calculated for transitions to 2s2p( P-1) and 2p(2)(D-1) autoionization states (AIS) from the ground state of he lium-like ions (the transitions to two lower S-1 AIS were investigated earl ier). In the zero approximation electrons are described by Coulomb function s and the interelectron interaction is taken into account in the first pert urbation order.