Resolved HII regions in NGC 253: Ionized gas structure and suggestions of a universal density-surface brightness relation

Rebecca L. McClain, Adam K. Leroy, Enrico Congiu +23

We use the full-disk VLT-MUSE mosaic of NGC 253 to identify 2492 HII regions and study their resolved structure. With an average physical resolution of 17 pc, this is one of the la…