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gr-qc2026
Neutron stars with primary scalar hair
Hamza Boumaza, Christos Charmousis, David Langlois +1
We investigate static and spherically symmetric neutron star solutions endowed with primary scalar hair in a subfamily of Degenerate-Higher-Order-Scalar-Tensor (DHOST) theories of…
hep-ph2026
Axial Quasi-normal Modes of Boson-Fermion Stars
Hamza Boumaza, Boris Betancourt Kamenetskaia
We study axial quasi-normal modes of boson-fermion stars composed of ordinary nuclear matter and a self-interacting bosonic dark matter component. The equilibrium configurations ar…
gr-qc2026
Radial Oscillations of Neutron Stars with Vector-Induced Scalar Hair
Hamza Boumaza
In this paper, we investigate the equilibrium configurations and radial perturbations of neutron stars within a subclass of gauge-invariant Scalar-Vector-Tensor (SVT) theories. By…