3 papers
gr-qc2026
A Plunge into the Chasm: Surviving Tidal Effects in Kerr Spacetime
Guillaume Lhost, Ornella Ruta, Claude Semay
We investigate the fate of an observer falling towards a Kerr black hole. The tidal forces are computed for arbitrary trajectories of an observer, and we specify them along the pol…
gr-qc2025
Approach to the separatrix with eccentric orbits
Guillaume Lhost, Geoffrey Compère
Eccentric binary compact mergers are prime targets of current and future gravitational wave observatories. In the small mass ratio expansion, post-adiabatic inspirals have been mod…
hep-th2025
A note on partially massless supergravity
Nicolas Boulanger, Guillaume Lhost, Sylvain Thomée
We analyse the couplings of a partially massless spin-2 field with a doublet of massless, real spin-3/2 fields. In the flat limit, this spectrum coincides with the spectrum of ${\c…