Fig. 17.

Probability distributions of bump widths for a non-Gaussian threshold distribution. Logarithm of the probability of the bump width Δ when the local probability distribution is given by a shifted exponential and the covariance function is Gaussian: all bumps (top), stable bumps (middle), unstable bumps (bottom). Parameter values are $\sigma =1$, $\mu =-1$, $\lambda =1$, $N=32$, $\kappa =1$, $L=2\pi$ and $h_0=0.05$