Mr. Daxal Mehta

The discovery of massive black holes within the first billion years of cosmic history poses a major challenge to our understanding of black hole formation and growth. Recent observations from the James Webb Space Telescope (JWST) have revealed compact AGN-hosting galaxies and unexpectedly massive black holes at high redshift, raising important questions about their origins. In this talk, I will present a series of hydrodynamical simulations that follow the evolution of black holes from the first generations of stars to the massive black holes observed in the early Universe. Using high-resolution simulations, we investigate how dense primordial environments enable rapid black hole growth through gas accretion, despite the presence of stellar and black hole feedback. We will use the results of these simulations to compare with black hole population inferred by JWST and also future detector like LISA. Together, these results provide new insights into the origin of the earliest massive black holes and their connection to future observations with JWST and LISA.