968 citations · 2k across the 63 of their papers we have counts for
4 papers · 1 filter
Acoustic horizons in axially symmetric relativistic accretion
Hrvoje Abraham, Neven Bilic, Tapas K. Das
Transonic accretion onto astrophysical objects is a unique example of analogue black hole realized in nature. In the framework of acoustic geometry we study axially symmetric accre…
Transient acceleration from a hybrid Chaplygin gas
Neven Bilic, Gary B. Tupper, Raoul D. Viollier
We extend the Chaplygin gas model for dark matter and dark energy unification by promoting the Chaplygin gas parameter A to the potential for an extra scalar with canonical kinetic…
Born-Infeld Phantom Gravastars
Neven Bilic, Gary B. Tupper, Raoul D. Viollier
We construct new gravitational vacuum star solutions with a Born-Infeld phantom replacing the de Sitter interior. The model allows for a wide range of masses and radii required by…
Pseudo-Schwarzschild Spherical Accretion as a Classical Black Hole Analogue
Surajit Dasgupta, Neven Bilić, Tapas K. Das
We demonstrate that a spherical accretion onto astrophysical black holes, under the influence of Newtonian or various post-Newtonian pseudo-Schwarzschild gravitational potentials,…