39 citations · 74 across the 5 of their papers we have counts for
5 papers
Inspirals into bosonic dark matter stars and chirp mimickers
Caio F. B. Macedo, Haroldo C. D. Lima, Raissa F. P. Mendes +2
We investigate extreme--mass--ratio inspirals in which a stellar-mass compact object orbits a supermassive bosonic dark matter star, modeled as a boson star, using fully relativist…
Twinkle twinkle dark star: Oscillating profiles from dark matter scalar solitons
Nicolas Aimar, Caio F. B. Macedo, João Luís Rosa +1
Real scalar fields, e.g. the axion, cannot condensate into stationary solitonic configurations to form starlike structures, eventually either dispersing or collapsing. However, by…
Multi-photon ring structure of reflection-asymmetric traversable thin-shell wormholes
Caio F. B. Macedo, João Luís Rosa, Diego Rubiera-Garcia +1
We consider the observational signatures of thin accretion disks around a reflection-asymmetric traversable thin-shell wormhole. This wormhole, built in the framework of Palatini $…
Optical appearance of black holes surrounded by a dark matter halo
Caio F. B. Macedo, João Luís Rosa, Diego Rubiera-Garcia
Black holes in General Relativity are described by space-time metrics that are simpler in comparison to non-vacuum compact objects. However, given the universality of the gravitati…
Observational imprints of gravastars from accretion disks and hot-spots
João Luís Rosa, Daniela S. J. Cordeiro, Caio F. B. Macedo +1
In this work, we analyze the observational properties of thin-shell gravastars under two astrophysical frameworks, namely surrounded by optically-thin accretion disks and orbited b…