22 citations · 100 across the 27 of their papers we have counts for
12 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…
A self-consistent Higgs-portal framework for dark matter--admixed neutron stars: Collider-motivated benchmarks meet multimessenger constraints
Adamu Issifu
We investigate dark matter (DM)-admixed neutron stars (NSs) within a self-consistent single-fluid relativistic mean-field framework by extending the Higgs-portal model with a massi…
Rotational enhancement and stability of protoquark stars during thermal evolution
Adamu Issifu, Andreas Konstantinou, Prashant Thakur +1
We present the first systematic study of rigidly rotating protoquark stars based on isentropic equations of state (EOS) within the density-dependent quark mass (DDQM) framework. Us…
Rotational effects in quark stars: comparing different models
Adamu Issifu, Andreas Konstantinou, Franciele M. da Silva +1
We investigate the rotational properties of self-bound strange quark stars using two representative quark matter equations of state (EOS): the vector MIT bag model and the density-…
Dark Matter Heating in Evolving Proto-Neutron Stars: A Two-Fluid Approach
Adamu Issifu, Prashant Thakur, Davood Rafiei Karkevandi +4
Neutron stars (NSs) provide a unique laboratory to probe dark matter (DM) through its gravitational imprint on stellar evolution. We use a two-fluid framework with non-annihilating…
Hyperons and 's in rotating protoneutron stars: Local properties
Franciele M. da Silva, Adamu Issifu, Luis C. N. Santos +2
The structural evolution of rotating protoneutron stars encodes essential information about their observable signatures, while microscopic properties provide complementary knowledg…
Scalarized Hot Neutron Stars Containing Hyperons and -Resonances in Different Evolution Regimes
Fahimeh Rahimi, Zeinab Rezaei, Adamu Issifu
Scalar-tensor gravity models are among the prime candidates to explain cosmic acceleration, and compact stars provide unique laboratories for testing such theories. Predictions of…
Magnetized Proto-Neutron Stars: Structure and Stability
Harsh Chandrakar, Adamu Issifu, Prashant Thakur +2
We investigate the evolution of magnetized protoneutron stars (PNSs) through four schematic stages: neutrino trapped, deleptonization, neutrino transparent, and the final cold, cat…
Rotating Proto-Neutron Stars Admixed with Mirror Dark Matter: A two fluid approach
Adamu Issifu, Andreas Konstantinou, Prashant Thakur +1
This work investigates the impact of mirror dark matter (DM) on the global properties of rotating neutron stars (NSs) across evolutionary stages, from hot, lepton-rich protoneutron…
Proto-neutron Stars with Dark Matter Admixture: A Single-Fluid Approach
Adamu Issifu, Débora P. Menezes, Tobias Frederico
This work investigates the impact of dark matter (DM) on the microscopic and macroscopic properties of proto-neutron stars (PNSs). We employ a single-fluid framework in which DM in…
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…
Constraining the Generalized Tolman-Oppenheimer-Volkoff (GTOV) equation with Bayesian analysis
Franciele M. da Silva, Fábio Köpp, Marcelo D. Alloy +4
In this work, we constrain the values of the parameters of the Generalized Tolman-Oppenheimer-Volkoff (GTOV) equation through Bayesian inference. We use the mass and radius data fr…