Plot of diffuse gaseous internal-absorption-corrected L_X/SFR vs. L_K. The data points are color-coded by merger stage. Merger stages 1 and 2 systems are marked by open green triangles. Merger stages 3, 4, and 5 are shown by open cyan diamonds, and merger stages 6 and 7 are identified by blue open squares. Here, L_☉ represents the bolometric luminosity of the Sun, 3.9 × 10³³ erg/s. Black crosses mark the normal spirals from Mineo et al. (2012). The open red squares indicate the Goulding et al. (2016) ellipticals, while the Su et al. (2015) E/S0 galaxies are shown by open magenta circles. As noted earlier, for the E/S0 galaxies, the SFRs from the UV+IR data using the Hao et al. (2011) formula may be upper limits, if the older stellar population is contributing significantly to the UV or IR data. Note that Arp 235 is not plotted, since no UV data are available.