3 papers
gr-qc2026
Inspirals into bosonic dark matter stars and chirp mimickers
Caio F. B. Macedo, Haroldo C. D. Lima, Raissa F. P. Mendes +2
We investigate extreme-mass-ratio inspirals in which a stellar-mass compact object orbits a supermassive bosonic dark matter star, modeled as a boson star, using fully relativistic…
gr-qc2025
Unstable chords and destructive resonant excitation of black hole quasinormal modes
Naritaka Oshita, Emanuele Berti, Vitor Cardoso
The quasinormal mode spectrum of black holes is unstable against small modifications of the radial potential describing massless perturbations. We study how these small modificatio…
gr-qc2024
Reconstruction of ringdown with excitation factors
Naritaka Oshita, Vitor Cardoso
In black hole perturbation formalism, the gravitational waveform is obtained by the convolution of the Green's function and the source term causing radiation emission. Hence, the r…