Cake Talk by Jasleen Matharu
Space-based slitless (or “grism”) spectroscopy capabilities on-board the Hubble Space Telescope have made it possible for us to conduct spatially-resolved studies of star formation, dust and starlight in large samples of high redshift galaxies for the first time. The future is truly slitless, with JWST, Euclid and the Nancy Grace Roman Space Telescope pushing these studies to higher redshifts and increased number statistics. I will talk about how this mode of observation made it possible to better constrain the size growth mechanisms of quiescent galaxies and directly observe environmental quenching occurring in cluster galaxies at z~1 for the first time. Then I will present deep spatially resolved H-Alpha emission line maps of CANDELS galaxies at z~0.5 from the CLEAR survey, made possible with the Wide Field Camera 3 G102 grism on-board the Hubble Space Telescope, and what these have unveiled on galaxy size growth via star formation at intermediate redshifts. By synthesizing the few existing spatially-resolved studies of High-Redshift Galaxies between 0.5<z<1.7 we now have, I will provide some of the first direct observations on how star formation and its quenching propagates spatially in galaxies over time. Given the skills and expertise I have gained during my research career so far, I will lay out my plan to synthesize multiple JWST Slitless Spectroscopic Datasets of 2 < z < 8 galaxies at DAWN, allowing us to complete the picture of how galaxies evolve into the early Universe.