97 citations · 659 across the 42 of their papers we have counts for
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Multipole moments and universal relations for scalarized neutron stars
George Pappas, Daniela D. Doneva, Thomas P. Sotiriou +2
In recent years there has been a surge of interest in what has come to be known as the `universal relations' between various global properties of neutron stars. These universal rel…
Moment of inertia - mass universal relations for neutron stars in scalar-tensor theory with self-interacting massive scalar field
Dimitar Popchev, Kalin V. Staykov, Daniela D. Doneva +1
We are investigating universal relations between different normalisations of the moment of inertia and the compactness of neutron stars in slow rotation approximation. We study the…
Quasinormal modes of compact objects in alternative theories of gravity
Jose Luis Blázquez-Salcedo, Zahra Altaha Motahar, Daniela D. Doneva +5
We address quasinormal modes of compact objects in several alternative theories of gravity. In particular, we focus on black holes and neutron stars with scalar hair. We consider b…
Charged Gauss-Bonnet black holes with curvature induced scalarization in the extended scalar-tensor theories
Daniela D. Doneva, Stella Kiorpelidi, Petya G. Nedkova +2
Recently new scalarized black hole solutions were constructed in the extended scalar-tensor-Gauss-Bonnet gravity, where the scalar field is sourced by the curvature of the spacetim…
Differentially rotating neutron stars in scalar-tensor theories of gravity
Daniela D. Doneva, Stoytcho S. Yazadjiev, Nikolaos Stergioulas +1
We present the first numerical models of differentially rotating stars in alternative theories of gravity. We chose a particular class of scalar-tensor theories of gravity that is…
Black holes, gravitational waves and fundamental physics: a roadmap
Leor Barack, Vitor Cardoso, Samaya Nissanke +203
The grand challenges of contemporary fundamental physics---dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem-…