Figure 4.

Internuclear distances and cell elongation determined by autocorrelation methods. (a) Examples of regions of interest for density–density autocorrelation functions used for internuclear distance (circle) and for cell elongation (perpendicular rectangles). The centre of the circular region is at position (x_c, y_c). (b) Angle-averaged density–density autocorrelation function g(d) of a circular region of interest as a function of distance d. Two peaks at finite distance are indicated. (c) Average internuclear distance d, corresponding to the first peak in the function g(d) in different regions of interest shown as a function of radial distance r in the spheroid (dots). Data points are grouped together in bins, such as for example the points around r = 100. For details see appendix C. (Online version in colour.)