Molecular Gas at High Redshift

▪ Abstract The Early Universe Molecular Emission Line Galaxies (EMGs) are a population of galaxies with only 36 examples that hold great promise for the study of galaxy formation and evolution at high redshift. The classification, luminosity of molecular line emission, molecular mass, far-infrared (FIR) luminosity, star formation efficiency, morphology, and dynamical mass of the currently known sample are presented and discussed. The star formation rates derived from the FIR luminosity range from about 300 to 5000 M ⊙ year −1 and the molecular mass from 4 × 10 9 to 1 × 10 11 M ⊙ . At the lower end, these star formation rates, gas masses, and diameters are similar to those of local ultraluminous infrared…