Detection of Accretion Shelves Out to the Virial Radius of a Low-Mass Galaxy with JWST

Charlie Conroy, Benjamin D. Johnson, Pieter van Dokkum +8

We report the serendipitous discovery of an extended stellar halo surrounding the low-mass galaxy Ark 227 ($M_{\ast }=5\times 10^9{M}_{\odot }$; d=35 Mpc) in deep JWST NIRCam imaging from…