| Abstract: | X-rays are the signatures of the high-energy Universe. The X-ray photons being produced in extreme conditions, provide unique opportunity to probe regions close to the Black Holes, Neutron stars and White Dwarfs. Hence making it possible to study such exotic objects in the Universe, thereby allowing the exploration of physical processes in extreme conditions. Many X-ray missions and instruments were realised since 1960s that contributed to the present understanding of the physics of X-ray emission in various astronomical sources. A steady progress in technological development has put X-ray astronomy in the mainstay of astronomy and astrophysics.
In this talk, I will provide an overview of the observational X-ray astronomy as well as current and future X-ray missions that have provided some path breaking scientific results to shed new lights on the nature of various astronomical sources as well as the physical mechanisms by which the X-rays are emitted. I will briefly mention about India's only X-ray polarimetry instrument POLIX onboard XpoSat satellite. |