New examples of marginally trapped surfaces and tubes in warped spacetimes

José Luis Flores, Stefan Haesen, Miguel Ortega,

By using the classical Hopf map $mathbb{S}^3 rightarrow mathbb{S}^2(1/2)$, we construct another fibration that allows us to obtain examples of marginally trapped tori and marginally outer trapped tubes (MOTT) which are foliated by tori, all of them embedded in a Friedman-Lema^itre-Robertson-Walker 4-spacetime with fiber $mathbb{S}^3$. In addition, we show examples of MOTTs with any causal character. (To appear in Classical and Quantum Gravity)