WISE has discovered an extraordinary population of hyper-luminous dusty galaxies which are faint in the two bluer passbands ( 3.4 \mu m and 4.6 \mu m ) but are bright in the two redder passbands of WISE ( 12 \mu m and 22 \mu m ) .
We report on initial follow-up observations of three of these hot , dust-obscured galaxies , or Hot DOGs , using the CARMA and SMA interferometer arrays at submm/mm wavelengths .
We report continuum detections at \sim 1.3 mm of two sources ( WISE J014946.17+235014.5 and WISE J223810.20+265319.7 , hereafter W0149+2350 and W2238+2653 , respectively ) , and upper limits to CO line emission at 3 mm in the observed frame for two sources ( W0149+2350 and WISE J181417.29+341224.8 , hereafter W1814+3412 ) .
The 1.3 mm continuum images have a resolution of 1 - 2 ″ and are consistent with single point sources .
We estimate the masses of cold dust are 2.0 \times 10 ^ { 8 } M _ { \odot } for W0149+2350 and 3.9 \times 10 ^ { 8 } M _ { \odot } for W2238+2653 , comparable to cold dust masses of luminous quasars .
We obtain 2 \sigma upper limits to the molecular gas masses traced by CO , which are 3.3 \times 10 ^ { 10 } M _ { \odot } and 2.3 \times 10 ^ { 10 } M _ { \odot } for W0149+2350 and W1814+3412 , respectively .
We also present high-resolution , near-IR imaging with WFC3 on the Hubble Space Telescope for W0149+2653 and with NIRC2 on Keck for W2238+2653 .
The near-IR images show morphological structure dominated by a single , centrally condensed source with effective radius less than 4 kpc .
No signs of gravitational lensing are evident .