Cake talk: Vicente Estrada-Carpenter (Postdoc at Saint Mary’s University)

Studying the Spatially Resolved Stellar Populations of High Redshift Galaxies using JWST NIRISSGrism Data

The formation histories of galaxies are encoded in their stars, and by constraining these stellar populations we can derive star-formation histories, chemical abundances, and dust properties. Another essential aspect in understanding the formation histories of galaxies is the spatial distribution of these stellar populations, as this can detail when and where galaxies are experiencing star formation. Spatially resolved SED fitting has been done in the past with photometry which has large sample sizes but limited spectral information, and IFU data which has been limited at high redshifts. In this talk, I will discuss methods I am developing to measure the spatially resolved stellar populations of high redshiftgalaxies using grism spectra from JWST/NIRISS plus photometry from JWST and HST. These methods will allow us to create stellar population maps for hundreds to thousands of high redshift galaxies detailing when and where they formed their stars.