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Dongwoo Chung works on mapping out signals of star formation over the first several billion years of observable cosmic history. His work encompasses operation, analysis, and interpretation of experiments employing the technique of line-intensity mapping (LIM). LIM traces the implied large-scale 3D distribution of matter in space-time through redshifted fluctuations of total cosmic emission from specific atomic and molecular spectral lines. His research includes cm-mm-wave observations, with lines including rotational lines of carbon monoxide (CO) and the [C II] line of ionized carbon, tracing the star-forming interstellar medium during the cosmic dawn and cosmic noon, thus strongly complementing observations of stellar populations in early galaxies using major facilities like Hubble Space Telescope (HST) and James Webb Space Telescope (JWST). Research highlights include interim results from the CO Mapping Array Project (COMAP), currently in the Pathfinder phase, commissioning the Tomographic Ionized-carbon Mapping Experiment (TIME), and planning a deep spectroscopic survey using the Epoch Reionization Spectrometer (EoR-Spec) at the CCAT facility. His lines of work admit a wide range of supporting projects encompassing simulations of signal noise domains, as well as both old and new statistical techniques and real-world observing data analyses.
Department of Architecture