Angle-resolved electronic decay of the ?*, ?* and Rydberg resonances below the O K-edge in O2

Angle-resolved electronic decay spectra of the O2 molecule have been measured at photon energies corresponding to the excitation of core electrons into the ?*, ?* and Rydberg levels. Asymmetry parameters have been determined for resonant Auger transitions and compared with previous data where available. The ?* spectrum has also been studied with a narrow photon bandwidth in different regions of the vibrationally unresolved absorption feature.