938625.fig.003a
(a)
938625.fig.003b
(b)
938625.fig.003c
(c)
938625.fig.003d
(d)
Figure 3: Emission of a photoelectron for an isolated ((a) and (c)) and a coordinated ((b) and (d)) atom. In the latter the absorption coefficient measured at a central atom threshold shows a fine structure due to the presence of neighboring atoms.