activity
20232026
most citedNormal oscillation modes and radial stability of neutron stars with a dark-energy core from the Chaplygin gas

16 citations · 26 across the 6 of their papers we have counts for

collaborators

6 papers

gr-qc2026

Structure and astrophysical properties of dark energy admixed neutron stars

Juan M. Z. Pretel, Sergio B. Duarte, Mariana Dutra +1

The presence of a dark energy (DE) core, made of a Chaplygin dark fluid, is capable of influencing the diverse observable properties of neutron stars (NSs). However, there is also…

astro-ph.SR2025★ 2 cited

Dark Matter in White Dwarfs: Implications for Their Structure

Sílvia P. Nunes, José D. V. Arbañil, Juan M. Z. Pretel +1

White Dwarfs (WDs), the final evolutionary stage of most stars, are frequently modeled considering only a dense plasma matter. However, their potential interaction with dark matter…

gr-qc2024

Neutron stars with a dark-energy core from the Chaplygin gas

Juan M. Z. Pretel, Mariana Dutra, Sergio B. Duarte

We analyze the effect of a Chaplygin dark fluid (CDF) core on neutron stars (NSs). To address this study, we focus on the relativistic structure of stellar configurations composed…

gr-qc2024★ 5 cited

Dark energy effects on realistic neutron stars

Juan M. Z. Pretel, Sergio B. Duarte, José D. V. Arbañil +2

By considering realistic equations of state (EoSs) to describe the ordinary matter of the stellar crust, in this study, we explore the effect of a dark energy core, made of Chaplyg…

astro-ph.HE2024★ 16 cited

Normal oscillation modes and radial stability of neutron stars with a dark-energy core from the Chaplygin gas

Juan M. Z. Pretel, Mariana Dutra, Sergio B. Duarte

As a potential candidate for the late-time accelerating expansion of the Universe, the Chaplygin gas and its generalized models have significant implications to modern cosmology. I…

astro-ph.HE2023★ 3 cited

Quark confinement in an equiparticle quark model: application to stellar matter

Isabella Marzola, Sérgio B. Duarte, César H. Lenzi +1

We perform an improvement in a thermodynamical consistent model with density dependent quark masses () by introducing effects of quark confinement/deconfinement phase t…