Probing autoionizing states of molecular oxygen with XUV transient absorption: Electronic-symmetry-dependent line shapes and laser-induced modifications

U. S. Army Research Laboratory; U. S. Army Research Office [W911NF-14-1-0383]; U. S. Department of Energy Office of Basic Energy Sciences, Division of Chemical Sciences [DEAC02-05CH11231]; US DOE Basic Energy Sciences [DE-SC0012198]; Arizona TRIF Photonics Fellowship