Timescale of Stellar Feedback-driven Turbulence in the ISM: A Deep Dive into UGC 4305

Abstract Understanding the interplay of stellar feedback and turbulence in interstellar medium (ISM) is essential to modeling evolution galaxies. To determine timescales over which drives ISM, we performed a spatially resolved, multiwavelength study nearby star-forming dwarf galaxy UGC 4305. As indicators on local scales (400 pc), utilized ionized gas velocity dispersion derived from IFU H α observations atomic energy surface densities i synthesis with Very Large Array. These were tested against star formation histories past 560 Myr color–magnitude diagrams using Spearman’s rank correlation coefficient. The strongest identified at 400 pc scale between measures 70–140 ago. We repeated our analysis 4305's current activity multiple physical (∼560 800 pc) whether there are indications changes timescale scale. No notable correlations found larger scales, emphasizing importance analyzing formation-driven as phenomenon.