Shake-up Processes in the 3d Photoionization of Sr I and the Subsequent Auger Decay

The shake-up processes accompanied by 3d photoionization and subsequent Auger decay are studied using multi-configuration Dirac–Fock methods. General agreement is obtained with the experimental results for both the photoelectron and Auger electron spectra. The energy and relative intensity of the 5s→6s shake-up accompanied by the 3d photoionization process are identified quantitatively.