Leonessa: An Extremely Metal-poor Galaxy Undergoing Secular Chemical Evolution

Joseph A. Breneman, Kristen B. W. McQuinn, Alexander Menchaca +5

Extremely metal-poor (XMP) galaxies are systems with gas-phase oxygen abundances below $\sim$5% Solar metallicity (12+log(O/H)$\le$7.35). These galaxies populate the metal-poor end…