Rivera, Jesus. Detailed studies of dusty star-forming galaxies in the Atacama Cosmology Telescope equatorial survey. Retrieved from https://doi.org/doi:10.7282/t3-peaj-zb25
DescriptionDusty star-forming galaxies (DSFGs) are some of the most luminous and rapidly star-forming systems in the Universe. However, the large dust content present in these galaxies absorbs the optical light produced from stars and re-radiates it out to longer wavelengths, primarily in the infrared. As a result, this population of galaxies that are forming stars at rates of up 1000 M_sun/year were missed in surveys that looked only in the optical regime. The true nature of these galaxies did not start to come to light until the late 1990s when they were discovered in large numbers in submillimeter surveys. In this thesis, I present results on the 30 brightest DSFGs among a larger sample first identified in the Atacama Cosmology Telescope 470 deg^2 equatorial field survey observed at 148, 218, and 277 GHz. In Chapter 2, I present a detailed analysis from Northern Extended Millimeter Array (NOEMA) CO data of ACT J0209, a strongly-lensed source. In Chapter 3, I present a similar preliminary analysis on an additional source, ACT J2029, that combines the use of both NOEMA and Hubble Space Telesope (HST) data. In Chapter 4, I present a more sample-wide analysis by including additional NOEMA data and Submillimeter Array (SMA) data to characterize the physical properties of the sample. And finally in Chapter 5, I discuss future prospects for both the subsample of 30 DSFGs and the parent DSFG sample.