3 papers
gr-qc2026
Quark Stars in Ricci-Determinant Gravity with an Interacting Quark Equation of State
Loreany F. Araújo, Krishna Pada Das
In the present study, we explore the fundamental properties of static, spherically symmetric quark stars composed of quark matter with an interacting quark equation of state (EoS)…
astro-ph.HE2025
Sub-GeV dark matter in neutron stars: halo morphologies and their suppression by vacuum-like pressure
Loreany F. Araújo, Germán Lugones, José Ademir S. Lima
We investigate neutron stars that contain a unified dark sector composed of cold, degenerate fermionic dark matter and a vacuum-like dark-energy component. Within a general-relativ…
astro-ph.HE2025
Dark interactions in neutron star interiors: the interplay of baryons, dark matter, and dark energy
L. F. Araujo, G. Lugones, J. A. S. Lima
The impact of energy exchange among the relevant fluid components: baryonic matter, fermionic dark matter (DM), and dark energy (DE) on the internal structure of neutron stars is i…