Rob Simcoe maintains strong interests in the development of optical/infrared instrumentation for ground-based astronomy, and the observation of galaxies and intergalactic matter at the epoch when the universe was ~5-10% of its present age.
In particular, he has worked to improve characterizations of the spatial distribution of elements heavier than Hydrogen and Helium at early times. In the wake of the Big Bang, the universe is thought to have been primarily composed of H and He, with nearly all large scale production of heavier elements taking place through nuclear fusion in the cores of the first stars. When these stars ended their lifetimes, they exploded as supernovae and polluted intergalactic space with newly formed chemicals.
By studying the strength and spatial variation of intergalactic oxygen and carbon at early epochs, Simcoe has been working toward an understanding of when and where the first stars in the universe were formed. Further work in correlating the locations of early galaxies with heavy elements in the nearby intergalactic medium is also leading to some of the the first direct physical characterizations of the cycle of galaxy formation, supernova feedback, and chemical enrichment during the peak era of star formation over cosmic time.
