João Rodrigues
Universidade de Coimbra
In this work, we compute analytical expressions for quasinormal frequencies, associated with tensor type gravitational perturbations and complex massless scalar field perturbations, for d-dimensional spherically symmetric string-corrected black holes. We compute these frequencies in the asymptotic limit, studying two different monodromies of the perturbation, when analytically continued to the complex r-plane. Additionally, we compute analytical expressions for the greybody factors associated with such perturbations.