Galaxies 09: Assembly, Gas Content and Star Formation History of Galaxies

Joaquin Vieira
University of Chicago / KICP

A new sample of (sub)mm galaxies discovered with the South Pole Telescope

The South Pole Telescope (SPT) is a 10m telescope currently surveying hundreds of square degrees in the southern sky down to mJy RMS levels at 1.4, 2, and 3 mm. The SPT is optimized for fine-scale temperature anisotropy measurements of the cosmic microwave background (CMB) and the primary science goal is a mass limited survey of clusters of galaxies via the Sunyaev-Zeldovich effect (SZE). I will discuss the first and latest results from this project, with an emphasis on a new sample of (sub)mm extragalactic sources we have discovered. These objects are rare and extremely bright sub-mm galaxies (SMGs). I will present evidence that these objects are strongly lensed and at higher mean redshift than typical SMGs.

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