"Similar to the aurora borealis or northern lights seen on Earth, this planet and some brown dwarves are known to have auroras of their own – despite lacking the solar winds that traditionally drive them."

It would seem to me that since this apparent brown dwarf isn't in a solar wind which is needed to create an aurora, then it has to be emitting the needed energetic particles itself. Is this not obvious?

I think the article does a good job explaining...

You might have to be a bit more specific: a lot was discussed in the article ?

Interesting.

It begins .......

I'm not an expert, but am an enthusiast. I'd say this is a failed star, something that didn't have quite enough kick (re:mass) to ignite into one. I would think such a large body could not be a planet kicked out of a solar system it was part of; something this big would be doing the kicking out of other bodies.