My research focuses on neutron stars and black holes that are accompanied by a regular star that can feed them gas. With my research group, I study the physics of accretion, the jets and disk winds that are produced with it, thermonuclear X-ray bursts occurring on the surface of accreting neutron stars, and the impact that accreting neutron stars and black holes have on their environment. I also study these systems when they are not accreting, and I use the thermal glow of neutron stars to study their interior (see also my CV). Furthermore, I am the principal investigator of a daily X-ray monitoring campaign of the center of our Milky Way galaxy using the Swift satellite, through which I study the Milky Way’s supermassive black hole and many other smaller black holes and neutron stars that inhabit the central parts of our Galaxy.