The most violent events in our Universe stem from compact objects such as white dwarfs, neutron stars and black holes, that is places where strong gravity and electromagnetic fields act together to produce intense radiation fields. Starting from general basic physics about radiation processes and plasma dynamics in these extreme environments, the lecture exposes some important applications to astrophysical objects and mechanisms. Concrete examples are taken from high-energy emission processes, particle acceleration, shocks and accretion physics. Typical objects at the heart of these processes are X-ray binaries, supernovae explosions, gamma-ray bursts and active galactic nuclei. The central engine responsible for these phenomena are either white dwarfs, neutron stars or black holes. Their essential properties are also reviewed.

• Appliquer des connaissances à la fois théoriques et expérimentales de physique fondamentale
• Avoir une vision large de la discipline
• Savoir analyser de manière autonome et critique un problème de physique générale