CO emission from the Z = 2.14 damped Lyman-alpha system toward 0528-250

Abstract

view Abstract Citations (20) References (19) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS CO Emission from the Z = 2.14 Damped Lyman-Alpha System toward 0528-250 Brown, Robert L. ; Vanden Bout, P. A. Abstract We report the detection of CO(J = 3-2) and CO(J = 4-3) emission observed toward the QSO 0528 - 250 at a redshift corresponding to the z = 2.14 damped Lyα absorption system previously identified in the optical spectrum of the object. The CO emission lines extend over 1100 km s^-1^ and show evidence for kinematic substructure of 100-150 km s^-1^. The total CO luminosity exceeds 2 x 10^8^ L_sun_, and the mass of molecular gas inferred under the assumption that the density, excitation temperature, and heavy-element depletion are similar to Galactic GMCs is approximately 7 x 10^11^ M_sun_. Publication: The Astrophysical Journal Pub Date: July 1993 DOI: 10.1086/186930 Bibcode: 1993ApJ...412L..21B Keywords: Emission Spectra; Galactic Evolution; Lyman Alpha Radiation; Quasars; Stellar Spectra; Carbon Monoxide; Molecular Gases; Red Shift; Sky Surveys (Astronomy); Astrophysics; COSMOLOGY: EARLY UNIVERSE; GALAXIES: FORMATION; GALAXIES: EVOLUTION; GALAXIES: QUASARS: ABSORPTION LINES full text sources ADS | data products SIMBAD (2)