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Author

F. Kühnel

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2 papers indexed here

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Preprint Sep 2026

Gravitational Imprints of Axion Clouds on Black-Hole Orbital Dynamics

Black holes of primordial or astrophysical origin immersed in axion dark matter provide a natural laboratory for exploring the interplay between compact objects and ultralight scalar fields. While previous studies have primarily focused on superradiance and horizon-scale phenomena, the gravitational response of the sur...

J. Ruz, V. Mungai, F. Kühnel et al. · 0 citations
Preprint Aug 2026

Primordial Asymmetries, Primordial Equation of State&Primordial Black Holes

We study the thermal history of the primordial Universe in the presence of non-zero lepton and baryon asymmetries. Considering different scenarios, we determine the equation of state (EoS) of the Universe from T = 10 GeV down to T = 1 keV, spanning the QCD transition, hadron gas phase and neutrino decoupling epochs. Us...

Maël Gonin, Julien Froustey, Albert Escrivà et al. · 1 citation

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