3 papers
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…
cond-mat.stat-mech2025
Non-Gaussian velocity distributions Maxwell would understand
J. A. S. Lima, M. H. Benetti
In 1988, Constantino Tsallis proposed an extension of the Boltzmann statistical mechanics by postulating a new entropy formula, , where is the number of micro…
gr-qc2024
Black-hole evaporation for cosmological observers
Thiago de L. Campos, C. Molina, J. A. S. Lima
This work investigates the evaporation of black holes immersed in a de Sitter environment, using the Vaidya-de Sitter spacetime. The role of cosmological observers is highlighted i…