Title: ‘Spectro-temporal’ evolution and disk-jet coupling of outbursting Black hole sources

Speaker: Dr. Radhika D, Dayananda Sagar University, Bengaluru

Abstract: Black holes are enigmatic sources observed in the galactic system and are end products of stellar evolution of some of the massive stars. If they exist in a binary system along-with a normal star as companion, the matter from the companion gets accreted towards the Black hole and this matter will form an accretion disk in order to conserve angular momentum. Nearer to the Black hole, matter in the disk will radiate in X-rays. These emissions play a significant role in understanding the accretion process and the characteristics of the Black hole. Strong radio Jet emissions are also observed to emerge from Black holes which makes the whole process complex. This talk will emphasize the importance of `spectro-temporal’ evolution of different black hole sources and their disk-jet coupling phenomenon based on observations by X-ray satellites like RXTE, SWIFT, NuSTAR and AstroSat.