Waste heat. Sorry, my internal editor cringes at that...

As to the object, I notice something interesting. In the writeup:

Nobody had ever bothered to look at it in mid-IR before, because as a general rule things that are dim in the near-IR are also dim in the mid-IR.

And then I look at the paper - and it was submitted in December 2010, only a few years ago. Which then leads to the question - has anyone looked for things that are dim in near-infrared but bright in far-infrared? Do we actually know how much apparent dark matter is (or isn't) pumping out waste heat all over the place?

(That is a very interesting page, by the way...)