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21 papers · 1 filter
A self-consistent single-fluid framework for neutron stars admixed with mirror dark matter
Adamu Issifu, Constança Providência, Franciele M. da Silva +2
We develop a self-consistent dark matter admix neutron star framework based on a contact vector current--current interaction that couples the chemical potentials of both sectors th…
Non-Radial Oscillation Modes in Hybrid Stars with Hyperons and Delta Baryons
Ishfaq Ahmad Rather, Kau D. Marquez, Prashant Thakur +1
We study the effects of hyperons, delta baryons, and quark matter phase transitions on -mode oscillations in neutron stars. Using the density-dependent relativistic mean-field m…
XTE J1814-338 as a dark matter admixed neutron star
Luiz L. Lopes, Adamu Issifu
The existence of the ultracompact object XTE J1814-338, with an inferred mass and radius of = 1.21 0.05 and R = 7.0 0.4 km, presents a great challenge for…
Strange stars admixed with dark matter: equiparticle model in a two fluid approach
Isabella Marzola, Everson H. Rodrigues, Anderson F. Coelho +1
In this work, we explore the possible scenario of strange stars admixed with fermionic or bosonic dark matter. For the description of the ``visible'' sector, we use a specific phen…
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…
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…