Convergence of Theory and Experiments for the 3C/3D Line Ratio in Ni XIX

POSTER

Abstract

We report the results of a new Dirac {\sl R}-matrix calculation for the 3C/3D X-ray line ratio in Ni\ {\small XIX}, together with the results of new experimental measurements performed on an EBIT. The results and uncertainties were obtained independently at the Harvard-Smithsonian Center for Astrophysics and NIST, respectively, and agree well with each other. The theoretical results are converged to an uncertainty of $\sim$5\%.

*NSF and NASA grants

Authors

  • J.D. Gillaspy

  • J.N. Tan

  • G.X. Chen

  • K. Kirby

    • ITAMP, Harvard-Smithsonian Center for Astrophysics

  • E. Silver

  • N.S. Brickhouse

    • Harvard-Smithsonian Center for Astrophysics

  • J. Pomeroy

    • NIST

  • J.M. Laming

    • Naval Research Laboratory