<i>HST</i> WFC3/Grism observations of the candidate ultra-high-redshift radio galaxy GLEAM J0917โ0012
<i>HST</i> WFC3/Grism observations of the candidate ultra-high-redshift radio galaxy GLEAM J0917โ0012
Abstract We present Hubble Space Telescope Wide Field Camera 3 photometric and grism observations of the candidate ultra-high-redshift ( $z>7$ ) radio galaxy, GLEAM J0917โ0012. This radio source was selected due to the curvature in its 70โ230 MHz, low-frequency Murchison Widefield Array radio spectrum and its faintness in K -band. โฆ