Temperature seems off
The sun has a surface temperature of around 5,800 K, so 10,170 K (which is near the upper end of the typical range of an A-type stars) seems a tad much for KELT-9b. Maybe 10,170 refers to KELT-9 itself. If KELT-9b is 1,200 K below the temperature of the sun, it should be about 4,600 K, as hot as a typical K-class star. Blistering indeed