Large-scale structure traced by molecular gas at high redshift

摘要: We present observations of redshifted CO(1-0) and CO(2-1) in a field containing an overdensity Lyman break galaxies (LBGs) at . Our Australia Telescope Compact Array were centered between two spectroscopically confirmed galaxies. place upper limits on the molecular gas masses these M(H2) < 1.7 × 1010 <2.9 109 M (2 σ), comparable to their stellar masses. detect optically faint line emitter situated LBGs which we identify as warm This source, detected transition but undetected CO(1-0), has integrated flux Jy km s−1 , yielding inferred mass = Molecular emitters without detectable counterparts optical infrared wavelengths may be crucial tracers structure high redshift.