(Upper left panel) Effective temperatures and gravities of the Kurucz model atmospheres (symbols) and the 2 M_⊙ models (continuous lines; the lower longer lines correspond to more rapid rotation). The pluses (+ ) represent initial Kurucz atmospheres whereas the diamonds (⋄ ) represent missing points which were interpolated from the neighbouring atmosphere models. (Remaining panels) Specific intensities and its partial derivatives for a 2 M_⊙, 0.8Ω_c model, as a function of colatitude and μ.