The possibility of observing atomic lines in the x-ray spectra of strongly magnetized accreting neutron stars is discussed. For magnetic field strengths ranging from ${10}^{11}$-${10}^{14}$ G, both the energies and oscillator strengths of Fe XXVI lines are calculated quantitatively. These lines are expected to be highest in energy, and should dominate at source temperatures $\mathrm{kT}\sim 10-30$ keV.

• Received 17 February 1981

DOI:https://doi.org/10.1103/PhysRevLett.46.1700