High Precision {\it K}-Shell Photoabsorption Cross Sections for Atomic Oxygen: Experiment and Theory

B. M. McLaughlin, C. P. Ballance, K. P. Bowen +2

Photoabsorption of atomic oxygen in the energy region below the $1{\mathrm{s}}^{-1}$ threshold in x-ray spectroscopy from {\it Chandra} and {\it XMM-Newton} is observed in a variety of x-…