(hot dust-obscured galaxy, hot dust-obscured object)
(high-energy galaxy with a lot of dust)
About 1000 galaxies dubbed hot DOGs
(hot dust-obscured galaxy or hot dust-obscured object)
have been seen by WISE,
having 1000 times the electromagnetic radiation as the Milky Way
and largely as old as 10 billion years (redshifts in 2 to 4 range).
They may be obscured quasars/active galactic nuclei.
The name stems from the acronym DOG,
used for dust-obscured galaxy.
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