PANORAMIC: Discovery of an Ultra-Massive Grand-Design Spiral Galaxy at $z\sim 5.2$

Mengyuan Xiao, Christina C. Williams, Pascal A. Oesch +26

We report the discovery of an ultra-massive grand-design red spiral galaxy, named Zhúlóng (Torch Dragon), at $z_{\mathrm{phot}}=5.2_{-0.2}^{+0.3}$ in the JWST PANORAMIC survey, iden…