Can Blue UV-Bright Galaxies Drive Reionization at Cosmic Dawn? An $M_{\mathrm{UV}}=-19.6$ Galaxy with $f_{\mathrm{esc}}\approx 0.85$ at $z=9.244$

Yunjing Wu, Sijia Cai, Yongda Zhu +28

We revisit EBG-1, a gravitationally lensed galaxy at $z=9.244$, using newly obtained deep (14 hr) JWST/NIRSpec G235M ($R\sim 1000$) spectroscopy. EBG-1 is one of the bluest gala…