Toward a Spatially-resolved Kennicutt-Schmidt Law in High-redshift Cluster Galaxies: the Interplay Between Molecular Gas, Star Formation, and Stellar Mass with ALMA and HST Toward a Spatially-resolved Kennicutt-Schmidt Law in High-redshift Cluster Galaxies: the Interplay Between Molecular Gas, Star Formation, and Stellar Mass with ALMA and HST Our understanding of how gas is converted into stars on small spatial scales within z > 0.1 main-sequence galaxies has been hindered by a dearth of high-resolution imaging of the molecular gas component. However, a new window into spatially-resolved molecular gas has recently opened through ALMA observations of high-redshift galaxy clusters. These gains have been largely due to the high source density of star forming galaxies in young clusters, which allows for efficient multiplexing. The ALMA observations have yielded exquisite velocity maps and morphological analyses for the first large sample of spatially-resolved molecular gas in high-redshift galaxies. By combining these novel ALMA data with rest-frame UV imaging using ACS/WFC F475W and F625W, we will investigate the interplay between gas, star formation, and stellar mass on kiloparsec scales, for ~30 main-sequence cluster galaxies at z~1.6. This will be the first determination of the spatially-resolved Kennicutt-Schmidt law for a large sample of galaxies at high redshift, and will be a pioneering study of how gas is consumed by star formation on sub-galactic scales near the peak of cosmic star formation.
|Effective start/end date||7/1/21 → 8/31/24|
- Space Telescope Science Institute: $147,995.00
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