51 citations · 346 across the 14 of their papers we have counts for
14 papers
Charged cosmological black holes: a thorough study of a family of solutions
Daniel C. Guariento, Alan Maciel, Marina M. C. Mello +1
We study a class of charged cosmological black holes defined by the Shah-Vaidya solution, which is similar to the McVittie solution but for a central object of nonzero electric cha…
Hamiltonian analysis of the cuscuton
Henrique Gomes, Daniel C. Guariento
The cuscuton was introduced in the context of cosmology as a field with infinite speed of propagation. It has been claimed to resemble Hořava gravity in a certain limit, and it is…
Self-gravitating fluid solutions of Shape Dynamics
Daniel C. Guariento, Flavio Mercati
Shape Dynamics is a 3D conformally invariant theory of gravity which possesses a large set of solutions in common with General Relativity. When looked closely, these solutions are…
Cosmological black holes and white holes with time-dependent mass
Alan M. da Silva, Daniel C. Guariento, C. Molina
We consider the causal structure of generalized uncharged McVittie spacetimes with increasing central mass and positive Hubble factor . Under physically reasonable c…
Horndeski meets McVittie: A scalar field theory for accretion onto cosmological black holes
Niayesh Afshordi, Michele Fontanini, Daniel C. Guariento
We show that the generalized McVittie spacetime, which represents a black hole with time-dependent mass in an expanding universe, is an exact solution of a subclass of the Horndesk…
Cosmological black holes from self-gravitating fields
Elcio Abdalla, Niayesh Afshordi, Michele Fontanini +2
Both cosmological expansion and black holes are ubiquitous features of our observable Universe, yet exact solutions connecting the two have remained elusive. To this end, we study…