Comparison of our results for KS 1731−260 with Sht07 (upper panel) and BC09 (bottom panel). Solid curves are our fits and dashed and dotted dashed curves are Sht07 and BC09 results, respectively. M = 1.6 M_⊙ is fixed for all. The last observation (with a red square) was reported after the publication of those works. a) The solid line is our curve with Q_imp = 2. The dashed curve is from Sht07. b) The solid curve is our best fit with χ² = 0.5. Fixed parameters are Ṁ₁₈ = 0.1 and Q_imp = 1.5. The brown region corresponds to χ²< 2 with free parameters varying in ranges T_c,8 = (0.45 − 0.51) and T_b,8 = (2.5 − 3.4).