The Shadows of Regular Black Holes with Asymptotic Minkowski Cores

We investigate the shadow cast by a sort of new regular black holes which are characterized an asymptotically Minkowski core and Sub-Planckian curvature. Firstly, we extend metric with spherical symmetry to one rotating Kerr-like derive null geodesics circular orbit near horizon hole, then plot different values deviation parameter. It is found that size shrinks increase parameter, while shape becomes more deformed. In particular, comparing Bardeen hole Hayward same parameters, find in general has larger deformation than de Sitter core, potentially provides strategy distinguish these two sorts cores astronomical observation future.