20 citations · 28 across the 6 of their papers we have counts for
11 papers
Chaplygin-Kalb-Ramond Quartessence
Neven Bilic, Gary B. Tupper, Raoul D. Viollier
Unified dark matter/energy models (quartessence) based upon the Chaplygin gas D-brane fail owing to the suppression of structure formation by the adiabatic speed of sound. Includin…
Dark Matter at the Center and in the Halo of the Galaxy
Neven Bilic, Gary B. Tupper, Raoul D. Viollier
All presently known stellar-dynamical constraints on the size and mass of the supermassive compact dark object at the Galactic center are consistent with a ball of self-gravitating…
Inhomogeneous Chaplygin Gas Cosmology
Neven Bilic, Robert J. Lindebaum, Gary B. Tupper +1
The hypothesis that dark matter and dark energy are unified through the Chaplygin gas is reexamined. Using a generalization of the spherical model which incorporates effects of the…
Supermassive fermion balls and constraints from stellar dynamics near Sgr A*
Neven Bilic, Gary B Tupper, Raoul D Viollier
All presently known stellar-dynamical constraints on the size and mass of the supermassive compact dark object at the Galactic center are consistent with a ball of self-gravitating…
Comparison of the Black Hole and Fermion Ball Scenarios of the Galactic Center
Neven Bilic, Faustin Munyaneza, Gary B. Tupper +1
After discussion of the properties of degenerate fermion balls, we analyze the orbit of the star S0-1, which has a projected distance of ~5 light-days to Sgr A*, in the supermassiv…
Dark Matter, Dark Energy and the Chaplygin Gas
Neven Bilic, Gary B. Tupper, Raoul D. Viollier
We formulate a Zel'dovich-like approximation for the Chaplygin gas equation of state P = -A/rho, and sketch how this model unifies dark matter with dark energy in a geometric setti…