Black holes in realistic branes: black string-like objects?

Understand

A realistic model describing a black string-like object in an expanding Universe is analyzed in the context of the McVittie's solution of the Einstein field equations.

• The bulk metric near the brane is provided analogously to previous solutions for black strings.
• In particular, we show that at least when the Hubble parameter on the brane is positive, a black string-like object seems to play a fundamental role in the braneworld scenario, generalizing the standard black strings in the context of a dynamical brane.