31 citations · 31 across the 1 of their papers we have counts for
3 papers
gr-qc2021
Junction conditions and thin-shells in perfect-fluid gravity
João Luís Rosa
In this work we derive the junction conditions for the matching between two spacetimes at a separation hypersurface in the perfect-fluid version of gravity, not…
gr-qc2020★ 31 cited
Existence and stability of relativistic fluid spheres supported by thin shells
João Luís Rosa, Pedro Piçarra
We propose two models for constant density relativistic perfect-fluid spheres supported by thin shell configurations. These models are obtained from the Schwarzschild constant dens…
gr-qc2016
Superradiant amplification by stars and black holes
João Luís de Figueiredo Rosa
In this thesis we study the phenomenon of superradiance and its implications to the stability of black-holes (BH) and perfect-fluid stars. Superradiance is a radiation enhancement…