Direct Collapse simulations of the massive black hole seed formation & Probing feedback via IGM tomography

Abstract:

Recent JWST observations are discovering many massive black holes in the early universe, and the direct collapse scenario for massive black hole (MBH) seed formation is becoming more attractive.  However, physical viability for such process has not been established fully, and more detailed numerical simulations are necessary to fully understand the complex nature of collapsing cloud in the early universe.  In this talk, I will describe the series of work on this scenario using the Enzo AMR cosmological hydrodynamic code with radiative feedback in a realistic cosmological environment (cf. Ardaneh et al. 2018;  Luo, et al., 2016, 2018, 2020, 2023). If time allows, I will also discuss how to probe feedback via IGM tomography at z~2-3 with the upcoming Subaru PFS and future telescopes such as JWST, ELT/TMT (KN+21).