Prof. Sera Markoff is professor of Theoretical High-Energy Astrophysics, focusing mainly on relativistic compact objects and astroparticle physics. Markoff specialises in the study of accretion – i.e., the gravitational capture of material – around compact objects such as black holes, and investigates how that energy is processed and released into a variety of forms, including extreme outflows and radiation. | S.B.Markoff@uva.nl | 020 525 7478 / 7491

Prof. Jason Hessels is professor of Observational High-Energy Astrophysics, in particular Radio Astronomy. He studies the most compact stars in the universe, so-called 'neutron stars'. He also conducts research into 'pulsars' (flashing neutron stars) and other short-lived astronomical radio signals, which can be used to map the extremes of nature. | J.W.T.Hessels@uva.nl | 020 525 7165 | 06 1026 0062

Prof. Carsten Dominik is professor of Astronomy. His research focuses on the formation and evolution of stars and planets, particularly the structure and evolution of the protoplanetary disks surrounding young stars. | C.Dominik@uva.nl | 020 525 7477

Astrophysicist Dr Selma de Mink studies the life of the heaviest and brightest stars in the universe. She has made a name for herself mainly with her work on double stars, supernova explosions and gravitational waves. | S.E.deMink@uva.nl | 020 525 8339