Molecular Gas at High Redshift

2005/07/01 by P.M. Solomon, P. M. Solomon, P.A. Vanden Bout +1 · 875 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Elliptical galaxy #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy formation and evolution #Galaxy merger #Interstellar medium #Luminosity #Luminous infrared galaxy #Population #Star formation #astro-ph

paper · pdf · doi:10.1146/annurev.astro.43.051804.102221

published in Annual Review of Astronomy and Astrophysics 43(1), 677-725 (Annual Reviews) · 49 pages, 10 figures, to appear Ann. Rev. Ast. & Astrophys. 43 (2005)

openalex publication_date 2005/07/01 · arxiv created 2005/08/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

▪ 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 galaxies and represent starbursts in centrally concentrated disks, sometimes, but not always, associated with active galactic nuclei. The evidence for large (>5 kpc) molecular disks is limited. Morphology and several high angular resolution images suggest that some EMGs are mergers with a massive molecular interstellar medium in both components. A critical question is whether the EMGs, in particular those at the higher end of the gas mass and luminosity distribution, represent the formation of massive, giant elliptical galaxies in the early Universe. The sample size is expected to grow explosively in the era of the Atacama Large Millimeter Array (ALMA).

Citations

• STAR FORMATION IN GALAXIES ALONG THE HUBBLE SEQUENCE

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