The MandelZoom project II: the impact of stellar feedback on black hole accretion through an α-disc in dwarf galaxies with a resolved interstellar medium

Abstract We present a suite of high-resolution simulations to study how different stellar feedback channels regulate the growth of central intermediate-mass black holes (IMBHs) in dwarf galaxies hosting nuclear star clusters (NSCs). We employ a super-Lagrangian refinement scheme to resolve the self-gravity radius of the α-accretion disc (<0.01 pc) and follow the gas inflows from the interstellar medium (ISM) to the black hole (BH), allowing for the self-consistent emergence of circumnucle