4 papers
Bondi and Novikov-Thorne accretion in regular black holes and Simpson-Visser spacetimes
Serena Gambino
We compare the Bondi spherical accretion model and the Novikov-Thorne thin disc formalism around regular black holes and Simpson-Visser spacetimes, using several equations of state…
Bondi accretion disk luminosity around neutral and charged Simpson-Visser spacetimes
Serena Gambino, Roberto Giambò, Orlando Luongo
We investigate relativistic Bondi accretion in the Simpson-Visser spacetime, which, via a single parameter , interpolates between the Schwarzschild, regular black hole, extre…
Comparing Bondi and Novikov-Thorne accretion disk luminosity around regular black holes
Salvatore Capozziello, Serena Gambino, Orlando Luongo
We consider and compare the Bondi and Novikov-Thorne accretion mechanisms in spherically symmetric regular black holes. To do so, we model the dark matter distribution adopting two…
Linear perturbations in Horndeski theories with spatial curvature
Serena Gambino, Francesco Pace
We analyse the implications of the presence of spatial curvature in modified gravity models. As it is well known, the current standard cosmological model, the CDM, is assumed t…