3 papers
astro-ph.HE2026
Multimessenger prospects of quasi-periodic eruptions
VojtÄch Witzany, Alessia Franchini, Matteo Bonetti +1
Quasi-Periodic Eruptions (QPEs) are recurring soft X-ray transients that may be generated by inspirals of stellar-mass objects spiraling into supermassive black holes, known as ext…
gr-qc2025
Analytic Solution for the Motion of Spinning Particles in Kerr Space-Time
Viktor Skoupý, VojtÄch Witzany
The equations of motion of massive test particles near Kerr black holes are separable in Boyer-Lindquist coordinates, as established by Carter. This separability, however, is lost…
gr-qc2025
Actions of spinning compact binaries: Spinning particle in Kerr matched to dynamics at 1.5 post-Newtonian order
VojtÄch Witzany, Viktor Skoupý, Leo C. Stein +1
The motion of compact binaries is influenced by the spin of their components starting at the 1.5 post-Newtonian (PN) order. On the other hand, in the large mass ratio limit, the sp…