I will present new results from the first deep ALMA continuum image of the
Hubble Ultra Deep Field (HUDF), designed to better connect our UV/optical
and FIR/mm views of the high-redshift Universe. From a mosaic of 45 ALMA
pointings we have constructed a 1.3mm image covering the full 4.5 sq arcmin
of the HUDF as previous imaged with WFC3/IR and ACS on Hubble. This new image
reaches an rms depth of 35 micro-Jy at a resolution of of 0.7 arcsec.
I will describe the design and implementation of this project, and the
analysis
of the final data product both for source discovery and stacking in the galaxy
mass/redshift plane. After presenting our results I will discuss the
implications of our findings for our understanding of the 1.3mm background,
the mass dependence of star formation and dust obscuration, and the
history of cosmic star-formation density. I will close by discussing the
prospects for future progress.
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