All Tables

Table 1: Radial scaling factors used in AUTOSTRUCTURE to minimize the total energy of the nl orbital wave functions.
Table 2: Lowest 66 energy levels in Ry for the n=4 calculation compared to experimental measurements listed on NIST (http://physics.nist.gov).
Table 3: Comparison of various calculated gf-values for the present calculations with Cornille et al. (1992), Sampson et al. (1991), and Fawcett (1984).
Table 4: List of the most prominent n=3 to n=2 transitions. The columns indicate: (1) the observed wavelength; (2) transition; (3) the line ratio of observation using the high-energy grating on Chandra (Desai et al. 2005); (4, 5) the n=4 R-matrix results for $\log T = 6.6$ and 6.8 respectively; (6) ratio of poulation of upper level due to radiative cascade to the population due to direct excitation for the n=4 R-matrix calculation; (7-9) the same as Cols. (4-6) but for the n=3 R-matrix calculation; (10, 11) APEC (version 1.10) intensities for $\log T=6.6,6.8$ ; (12) Desai et al. (2005) using an emission measure distribution peaked at $\log T=6.8$ ; (13) intensity ratios calculated using the distorted wave collision strengths of Sampson et al. (1991). Note: the 16.076 Å feature was measured by both a high-energy grating (HEG) and a medium-energy grating (MEG) which gave different results; the value in parentheses is from the MEG.