Nature and Nurture? Comparing Ly$\alpha$ Detections in UV-Bright and Fainter [O III]+H$\beta$ Emitters at $z\sim 8$ With Keck/MOSFIRE

Guido Roberts-Borsani, Tommaso Treu, Charlotte Mason +7

The 100% detection rate of Ly$\alpha$ emission in a sample of four luminous $z\sim 8$ galaxies with red Spitzer/IRAC colors suggests objects with unusual ionizing capabilities that creat…