Potassium abundances in extremely metal poor stars: Implications for nucleosynthesis in the final stages of massive star evolution

M. N. Ishigaki, N. Tominaga, W. Aoki +5

We present a potassium (K) abundance analysis in extremely metal-poor (EMP) stars based on high-resolution ($R\sim 60000$) spectra obtained with the High Dispersion Spectrograph on…