Spinning gravitating Skyrmions in generalized Einstein-Skyrme model

Understand

We investigate properties of self-gravitating isorotating Skyrmions in the generalized Einstein-Skyrme model with higher-derivative terms in the matter field sector.

• These stationary solutions are axially symmetric, regular and asymptotically flat.
• We provide a detailed account of the branch structure of the spinning solutions in the topological sector of degree one.
• We show that additional branches of solutions appear, as the angular frequency increases above some critical value, these "cloudy" configurations can be considered as a bound system of the spinning Skyrmions and "pion" excitations in the topologically trivial sector.