| Abstract: |
Understanding galaxy formation and evolution requires comprehensive observations of radiation from stars, gas, and dust in distant galaxies. In this talk, I will overview my recent and ongoing studies on distant universe in scales of the cosmic structure, circum-galactic and inter-stellar media, and central black holes, with the optical/NIR and submm/mm facilities such as Hubble, ALMA, and JWST. First, I will present the results from the 100-hrs large program of the ALMA Lensing Cluster Survey and its implication for the origin of the Cosmic Infrared Background Light and the dust-obscured side of the cosmic star-formation rate density. Next, I will talk about the Baryon cycle in and outside early galaxies revealed by deep ALMA and JWST observations. Finally, I will talk about young quasars at z~5-9 reported one after another since the JWST began its operation, along with the discovery of a rapidly growing young quasar in a dust-enshrouded starburst at z=7.2. I will also introduce ongoing JWST and ALMA programs that I have been leading as a PI and a JWST large program in planning. |
