Department of Astronomy Center for Radiophysics & Space Research

Characterizing the Molecular ISM of Strongly Lensed, Planck+Herschel Selected HyLIRGs at z ~ 1.3-3.3

29Friday, Sep. 29
Kevin Corneilus Harrington (AIfA, Bonn)
Space Sciences Building 622

The number of strongly lensed (sub)millimeter bright galaxies (SMGs) identified in the past few years has increased significantly thanks to large area surveys such as Herschel-ATLAS and HerMES, and SPT-SMGs. Recently, in Harrington ea. (2016), we have identified a number of Planck+Herschel counterparts and have imaged their 1.1mm emission with AzTEC and one of the low-J CO lines with the Large Millimeter Telescope/RSR. This has led to extensive follow-up of the CO(1-0) line with the Green Bank  Telescope and the mid-J transitions with the IRAM 30m. In this talk, I will present the main findings from these two on-going programs with a focus on our most recent results obtained using non-LTE large velocity gradient (LVG) and dust radiative transfer modeling of the CO excitation ladders (aka CO SLEDs) and dust spectral energy distributions (SEDs). I will also discuss future work to improve upon our endeavors to characterize the ISM of these lensed galaxies.