IISER MOHALI

Abstract: Accretion drives the most powerful sources in the Universe: from X-ray binaries and Cataclysmic Variables to Active Galactic Nuclei. Despite the variety of these systems, several ‘universal’ laws govern these accretion flows. Understanding these systems is crucial for studying a broad range of astrophysical topics, such as the formation and evolution of galaxies and clusters, chemical enrichment, star and binary formation, and their influence on the early Universe. In this talk, I will highlight results from recent multi-wavelength studies of novae and gamma-ray binaries which provide new insights into the particle acceleration mechanisms in them. I will describe my future plans for exploring these accretion flows on various scales using the existing and upcoming observatories, which promises to revolutionize our understanding of these enigmatic systems.