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Possible dark energy imprints in gravitational wave spectrum of mixed neutron-dark-energy stars
Stoytcho S. Yazadjiev, Daniela D. Doneva
In the present paper we study the oscillation spectrum of neutron stars containing both ordinary matter and dark energy in different proportions. Within the model we consider, the…
Time Evolution of the Radial Perturbations and Linear Stability of Solitons and Black Holes in a Generalized Skyrme Model
Daniela D. Doneva, Kostas D. Kokkotas, Ivan Zh. Stefanov +1
We study the time evolution of the radial perturbation for self-gravitating soliton and black-hole solutions in a generalized Skyrme model in which a dilaton is present. The backgr…
Solitons and Black Holes in a Generalized Skyrme Model with Dilaton-Quarkonium field
Daniela D. Doneva, Ivan Zh. Stefanov, Stoytcho S. Yazadjiev
Skyrme theory is among the viable effective theories which emerge from low-energy limit of quantum chromodynamics. Many of its generalizations include also a dilaton. Here we find…