Abstract

Contributed Talk - Splinter GalaxyEvol

Friday, 13 September 2024, 15:06   (S21)

Fueling Cosmic Star Formation: Buildup of Galaxies over 13.5 Billion Years

Prachi Prajapati, Dominik Riechers
PH1, UoC

The galaxies and star formation we see at present are attributed to a long history of galaxy formation and evolution. Reconstructing back in time the physical processes that led to the existing galaxies and explaining them in terms of different properties of the matter is one of the prime goals of the observational cosmology. In particular, studying the molecular gas content of high-redshift dusty star-forming galaxies (DSFGs) is of utmost importance for observationally confirming the galaxy formation and evolution theories. Observing the gas with low-excitation leads to better mass estimates and also helps in deriving the gas and dust properties of these galaxies more accurately. Having a large and diverse sample of DSFGs for such a study plays an important role in setting up statistically significant trends within the DSFG population and in determining whether or not there are significant differences in the gas properties of DSFGs compared to other populations. My talk will be focused on the VLA large program (Vz-GAL) to observe CO(1–0) in high-redshift DSFGs (0.8 < z < 6.5) for deriving insights on the cosmic star formation history.