2003ApJ...599..839G

We report the first detection of the lowest CO transition in a submillimeter bright galaxy and extremely red object (ERO) at z=1.44 using the Very Large Array (VLA).(1) The total J=1-0 line luminosity of ERO J164502+4626.4 is (7±1)x10¹⁰ K.km/s/pc2, which yields a total molecular gas mass of ∼6x10¹⁰M_☉. We also present a map of the 850 µm continuum emission obtained using the Submillimeter Common-User Bolometric Array, from which we infer a far-IR luminosity and dust mass of L_FIR∼9x10¹²L_☉and M_d∼9x10⁸M_☉, respectively. We find tentative evidence that the CO and submillimeter dust emission is extended over several tens of kiloparsecs. If confirmed by high-resolution imaging, this implies that ERO J164502+4626.4 is not simply a high-redshift-counterpart of a typical ultra luminous infrared galaxy (ULIRG).