A new front in branching Brownian motion

Branching Brownian motion (BBM) has gained lots of attention in recent years in part due to its significance to the universality class of log-correlated fields and their extremal landscapes. Recently, J. Berestycki, K., Lubetzky, Mallein and Zeitouni obtained a description of the limiting point process of the extreme values and locations of BBM in dimensions 2 and higher; however, certain details of the extremal landscape of multidimensional BBM were washed out in that limit. In this talk, we describe a more precise limiting point process that recovers those details and gives rise to a new object in the study of BBM, what we call the extremal front. We then obtain a scaling limit for the extremal front. Joint work with Ofer Zeitouni.