We use cookies to ensure that we give you the best experience on our website. You can change your cookie settings at any time. Otherwise, we'll assume you're OK to continue.

Durham University

Department of Physics

Staff profile

Publication details for Ruth Gregory

Davis, Anne C., Gregory, Ruth & Jha, Rahul (2016). Black hole accretion discs and screened scalar hair. Journal of Cosmology and Astroparticle Physics 2016(10): 024.

Author(s) from Durham


We present a novel way to investigate scalar field profiles around black holes with an accretion disc for a range of models where the Compton wavelength of the scalar is large compared to other length scales. By analysing the problem in ``Weyl" coordinates, we are able to calculate the scalar profiles for accretion discs in the static Schwarzschild, as well as rotating Kerr, black holes. We comment on observational effects.