2006ApJ...636..134B

Using the SHARC-II camera at the Caltech Submillimeter Observatory to obtain 350 µm images of sources detected with the MIPS instrument on Spitzer, we have discovered a remarkable object at z=1.325±0.002 with an apparent far-infrared luminosity of 3.2(±0.7)x10¹³ L_☉. Unlike other z>1 sources of comparable luminosity selected from mid-IR surveys, MIPS J142824.0+352619 lacks any trace of AGN activity, and is likely a luminous analog of galaxies selected locally by IRAS, or at high redshift in the submillimeter. This source appears to be lensed by a foreground elliptical galaxy at z=1.034, although the amplification is likely modest (≲10). We argue that the contribution to the observed optical/near-IR emission from the foreground galaxy is small, and hence are able to present the rest-frame UV through radio spectral energy distribution of this galaxy. Due to its unusually high luminosity, MIPS J142824.0+352619 presents a unique chance to study a high-redshift dusty starburst galaxy in great detail.