Passage of photons through wormholes and the influence of rotation on the amount of phantom matter around them

Static (spherically symmetrical) and stationary solutions for wormholes are considered. The main characteristics of electromagnetic radiation passing through a wormhole are found. These properties can be used to distinguish wormholes from other astrophysical objects. The visibility horizon, which characterizes the differences between black holes and passing wormholes, is determined in an invariant way. It is shown that the rotation of wormholes does not affect the amount of phantom matter that surrounds them.