4 papers · 1 filter
Accretion disks and relativistic line broadening in boson star spacetimes
João Luís Rosa, Joaquín Pelle, Daniela Pérez
In this work, we analyze the observational properties of static, spherically symmetric boson stars with fourth and sixth-order self-interactions, using the Julia-based general-rela…
A new solution for a generalized cosmological wormhole
Daniela Pérez, Mário Raia Neto
We find a new exact solution to Einstein field equations that represents a cosmological wormhole embedded in a flat Friedmann-Lemaître-Robertson-Walker universe. The new metric is…
The Shadow of Charged Traversable Wormholes
Mário Raia Neto, Daniela Pérez, Joaquín Pelle
We compute the shadow cast by a charged Morris-Thorne wormhole when the light source is a star located beyond the mouth which is opposite to the observer. First, we provide an exte…
Exact cosmological black hole solutions in Scalar Tensor Vector Gravity
Daniela Pérez, Gustavo E. Romero
We find an exact solution of Scalar-Tensor-Vector Gravity field equations that represents a black hole embedded in an expanding universe. This is the first solution of the kind fou…