Noura Dawass

2.3. S HAPE EFFECTS OF K IRKWOOD –B UFF I NTEGRALS 2 29 the function w ( x ) for spheroids and cuboids with the following aspect ratios, a = 0.1, 1, 2, 5, and 10. Clearly, the function w ( x ) varies a lot with the aspect ratio a , and this function is very different for a sphere and a cube. We found that it is difficult to accurately fit w ( x , a ) with polynomial functions. In a data repos- itory (see Ref. [118] ), we provide tabulated data of the function w ( x ) for various shapes of the subvolumes.