20 citations · 32 across the 12 of their papers we have counts for
7 papers · 1 filter
Anisotropic Dark Matter Stars with a Pressure-Sourced Dark Energy Density
Qazi Abdul Ghafoor, Ilídio Lopes\
If the dark sector is not inert, the vacuum energy trapped inside a dark matter star need not equal its cosmological value, but may instead respond to the star's own density and pr…
Intrinsic pressure anisotropy in spherical Proca stars
Ilídio Lopes
Pressure anisotropy in relativistic stars is commonly prescribed through a phenomenological closure, obscuring its microscopic origin and relation to stress-energy conservation. He…
Screened Scalar Hair and the Weak-Lensing Separation of Black Holes from Neutron Stars in Quadratic Gravity
Yashmitha Kumaran, Ilídio Lopes
Quadratic gravity carries a massive scalar degree of freedom, the scalaron, whose finite range screens its influence on the geometry outside a compact object. We show th…
Weak gravitational lensing by a dark-matter-admixed neutron star: a self-consistent two-fluid halo and the Gauss--Bonnet deflection angle
Yashmitha Kumaran, Ilídio Lopes
We compute the weak gravitational deflection of light by a neutron star that carries a self-consistent dark-matter component, in the regime in which the dark matter forms an "exten…
Slowly rotating condensate dark stars beyond the mean-field approximation
Grigoris Panotopoulos, Ángel Rincón, Ilidio Lopes
We investigate rotational properties and universal relations of slowly rotating Bose-Einstein condensate dark stars in the context of General Relativity, both at the mean-field lev…
Radial oscillations of quark stars in light of current astrophysical constraints: A comparative study
G. Panotopoulos, A. Rincon, I. Lopes
We investigate the structural and oscillatory properties of isotropic strange quark stars within General Relativity, focusing on three physically motivated equations of state: the…
Rotational Behaviour of Exotic Compact Objects
Zakary Buras-Stubbs, Ilídio Lopes
We construct exotic compact objects composed entirely of self-interacting asymmetric fermionic dark matter governed by a repulsive Yukawa potential with massive dark interaction bo…