The paper “Leapfrogging criteria for a line vortex pair external to a circular cylinder” authored by Matt Turner has been accepted for publication in Physics of Fluids. The paper identifies a criteria, a function of cylinder radius and the ratio of vortex strengths, which signifies the boundary between leapfrogging and non-leapfrogging motions as the vortices move around the cylinder. The paper has been chosen as an ‘Editor’s Pick’ by Physics of Fluids. A link to the PoF page is here. The author final copy of the paper and animations of the leapfrogging motion can be found here. An example is shown below.