Can mixed star-plus-wormhole systems mimic black holes?

Can mixed star-plus-wormhole systems mimic black holes?

Authors:

Dzhunushaliev et al

Abstract:

We consider mixed strongly gravitating configurations consisting of a wormhole threaded by two types of ordinary matter. For such systems, the possibility of obtaining static spherically symmetric solutions describing compact massive central objects enclosed by high-redshift surfaces (black-hole-like configurations) is studied. Using the standard thin accretion disk model, we exhibit potentially observable differences allowing to distinguish the mixed systems from ordinary black holes with the same masses.