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gr-qc2026
Circular orbits and particle collisions in the space-time of boson stars and their frozen states
Maria Chivers, Betti Hartmann, Katherine Horton +1
In this paper, we discuss the dynamics of test particles in the space-time of spherically symmetric, charged boson stars and their frozen states. These latter objects consist of a…
gr-qc2026
Circular orbits and particle collisions close to charged black holes surrounded by scalar clouds
Maria Chivers, Betti Hartmann, Katherine Horton +1
We study the motion of massive (un)charged test particles in space-times of electric and dyonic black holes which carry scalar hair. We determine the stable and unstable circular o…