97 citations · 659 across the 43 of their papers we have counts for
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Rotating tensor-multi-scalar solitons
Lucas G. Collodel, Daniela D. Doneva, Stoytcho S. Yazadjiev
In the context of a special class of tensor-multi-scalar theories of gravity for which the target-space metric admits an isometry under which the theory is invariant, we present ro…
Topological neutron stars in tensor-multi-scalar theories of gravity
Daniela D. Doneva, Stoytcho S. Yazadjiev
In the present paper we demonstrate that there exists a new type of neutron stars in the tensor-multi-scalar theories of gravity. We call this new type of neutron stars topological…
Mixed configurations of tensor-multi-scalar solitons and neutron stars
Daniela D. Doneva, Stoytcho S. Yazadjiev
In the present paper we consider special classes of massive tensor-multi-scalar theories of gravity whose target space metric admits Killing field(s) with a periodic flow. For such…
The Missing Link in Gravitational-Wave Astronomy: Discoveries waiting in the decihertz range
Manuel Arca Sedda, Christopher P. L. Berry, Karan Jani +27
The gravitational-wave astronomical revolution began in 2015 with LIGO's observation of the coalescence of two stellar-mass black holes. Over the coming decades, ground-based detec…
Gauss-Bonnet black holes with a massive scalar field
Daniela D. Doneva, Kalin V. Staykov, Stoytcho S. Yazadjiev
In the present paper we consider the extended scalar-tensor-Gauss-Bonnet gravity with a massive scalar field. We prove numerically the existence of Gauss-Bonnet black holes for thr…
Orbital and epicyclic frequencies in massive scalar-tensor theory with self-interaction
Kalin V. Staykov, Daniela D. Doneva, Stoytcho S. Yazadjiev
Testing modified theories of gravity with direct observations of the parameters of a neutron star is not the optimal way of testing gravitational theories. However, observing elect…