Stellar Populations and the Star Formation Histories of LSB Galaxies—Part I: Optical and Hα Imaging

Figure 11

Central surface brightness versus H𝛼 luminosity. There is a weak correlation between central stellar density and the global H𝛼 luminosity for LSB galaxies. There are numerous avenues of speculation from an increased number of ionizing UV photons with higher stellar density to higher gas surface densities leading to higher star formation rates.