Astrophysics of compact objects (neutron stars and black holes), more specifically:
•Accretion across the mass scale: from neutron stars and black holes in X-ray binaries to Active Galactic Nuclei (AGN)
•Observational probes of the neutron star dense matter equation of state (neutron star radii and masses)
•Relativistically broadened iron lines, especially in neutron star low-mass X-ray binaries
•Accretion at low rates and quiescent emission from neutron star low-mass X-ray binaries
•Reverberation mapping of AGN