activity
19932026
most citedTesting General Relativity with Present and Future Astrophysical Observations

1.5k citations · 7.9k across the 162 of their papers we have counts for

collaborators

166 papers

hep-th2026

Electroweak balls: non-topological solitons in the Weinberg-Salam theory

Carlos Herdeiro, Jutta Kunz, Burkhard Kleihaus +1

We construct a new class of smooth, finite-energy solitons in the bosonic Weinberg-Salam theory, which we dub . Their localization mechanism…

gr-qc2026

Black holes in alternative theories of gravity

Jose Luis Blázquez-Salcedo, Fech Scen Khoo, Burkhard Kleihaus +1

Black holes, with their strong gravitational fields, provide an important testing ground for theories of gravity beyond General Relativity. Among the many proposed alternatives, co…

gr-qc2026

Static multipolar Einstein-vector-Gauss-Bonnet black holes

Burkhard Kleihaus, Jutta Kunz

We construct and analyze static multipolar black holes in Einstein-vector-Gauss-Bonnet theory with a quadratic coupling function. The vectorized solutions bifurcate from the Schwar…

gr-qc2026

Boson Stars surrounded by Polish Doughnuts in Scalar-Tensor Theory

Kristian Gjorgjieski, Maxim Rose, Burkhard Kleihaus +2

We investigate thick accretion disks (Polish Doughnuts) around rotating self-interacting boson stars in general relativity and scalar-tensor theories, focusing on spontaneously sca…

gr-qc2026★ 1 cited

Stationary Einstein-vector-Gauss-Bonnet black holes

Burkhard Kleihaus, Jutta Kunz

We study spontaneously vectorized black holes in Einstein-vector-Gauss-Bonnet theory with a quadratic coupling function. Besides the static, spherically symmetric black holes carry…

gr-qc2025★ 4 cited

Phase transitions of boson stars in scalar-tensor theories

Hyat Huang, Burkhard Kleihaus, Jutta Kunz +3

In scalar-tensor theories, compact objects may experience spontaneous scalarization. Recently, it was shown that matter-induced spontaneous scalarization of neutron stars is predom…