Three-dimensional plots of the evolution of the space-charge layers of two interacting negative streamers show how the electrostatic repulsion between the two heads affects the charge distribution in the heads and drives them apart.

IEEE Nuclear and Plasma Sciences Society
IEEE Transactions on Plasma Science
Multiscale Dynamics

Luque, A., & Ebert, U. (2008). Interaction of streamers in air: The evolution of the space-charge layer in their heads. IEEE Transactions on Plasma Science, 36, 914–915.