PHIBSS: MOLECULAR GAS, EXTINCTION, STAR FORMATION, AND KINEMATICS IN THE z = 1.5 STAR-FORMING GALAXY EGS13011166*

摘要: We report matched resolution imaging spectroscopy of the CO 3-2 line (with IRAM Plateau de Bure millimeter interferometer) and Hα LUCI at Large Binocular Telescope) in massive z = 1.53 main-sequence galaxy EGS 13011166, as part high-z, blue-sequence survey (PHIBSS: Tacconi et al.). combine these data with Hubble Space Telescope V-I-J-H-band maps to derive spatially resolved distributions stellar surface density, star formation rate, molecular gas optical extinction, kinematics. The spatial distribution kinematics ionized are remarkably similar well modeled by a turbulent, globally Toomre unstable, rotating disk. density is smoother than clumpy rest-frame UV/optical light peaks an obscured, star-forming bulge near dynamical center. effective screen extinction track each other mixed model. inferred slope rate relation, N = dlogΣstar form/dlogΣmol gas, depends strongly on adopted model, can vary from 0.8 1.7. For preferred dust-gas we find 1.14 ± 0.1.