Isolated horizons of the Hopf bundle structure transversal to the null direction, the horizon equations and embeddability in NUT-like spacetimes

Denis Dobkowski-Ryłko, Jerzy Lewandowski, Maciej Ossowski

Isolated horizons that admit the Hopf bundle structure $H\to S_2$ are investigated, however the null direction is allowed not to be tangent to the bundle fibres. The geomet…