Dalhousie University
A massive protocluster at z=4.3 selected by the South Pole Telescope — The distant galaxy cluster SPT2349-56 will be studied using HST and JWST in optical through mid-infrared filters. The JWST NIRCam and MIRI instruments will be used to measure the stellar properties, star formation rates and histories, and galaxy morphologies of the member galaxies. This will allow a full characterization of the stars, gas, and dust in this cosmologically important protocluster of primordial starburst galaxies.