Speaker
Giovanni D'Addario
(University of Nottingham)
Description
Black hole quasi-normal mode (QNM) frequency spectrums can probe deviations from General Relativity. We construct an effective field theory scheme for QNMs in shift-symmetric scalar-tensor theories with second order equations, exploiting the behaviour of the black hole’s scalar charge in the large mass limit. We find a drastic simplification; the QNM calculation reduces to solving sourced QNMs on a Kerr background. Our analysis, which is particularly suited for black holes in the LISA range, places limits on the prospects of detecting evidence of scalar hair with ringdown signals.
Primary authors
Giovanni D'Addario
(University of Nottingham)
Antonio Padilla
(University of Nottingham)
Dr
Paul Saffin
(University of Nottingham)
Thomas Sotiriou
(University of Nottingham)
Dr
Andrew Spiers
(University of Nottingham)
