Links Dark Matter-driven Dynamics to Star Formation Triggers Via Hi Line Diagnostics, Bridging Cosmology and Stellar Physics

Abstract

This study investigates the role of dark matter-driven dynamics in the initiation of star formation using HI line diagnostics to bridge cosmology and stellar physics. From large-scale HI surveys (e.g., ALFALFA, HIPASS) and dark matter dynamics simulations, we investigate the connection between HI line properties (intensity, width, spatial distribution) and star formation indicators (star formation rates, H-alpha emission). They outline significant HI intensity and star-forming rate correlations and the ways in which dark matter halos determine the kinematics and distribution of the HI gas, particularly for star-producing regions. Dark matter-induced gravity is assumed to drive the HI gas toward areas that create more massive stars, further building upon the theory in an attempt to better understand the indirect contribution of dark matter toward star and galaxy formation. Subsequent research will focus on the dark matter-molecular gas relation and higher-resolution HI observations to better resolve the role of dark matter in the dynamical evolution of galaxies.