Quote:
Originally Posted by Van Rijn
No. Radio is EM radiation. Electrons are charged particles. They are not EM radiation.
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I guess I need to do some reading because as I understand it, electrons are negatively charged particles and when accelerated they emit EM radiation.
Quote:
(1)The ATIC finding was an excess of extremely high energy electrons (or positrons).
(2) You haven't presented a reference that indicates brown dwarfs generate these extremely high energy electrons.
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1. Right, and what might be the source is the question.
2. Van Rijn, the spacedaily article in the OP states one of "The least exotic possibilities...(could be) a nearby pulsar" while the article I linked in #24 discusses BDs as a new class of pulsar. I'm unsure why you feel I needed to provide any more reference in order to ask what seems to be an obvious question.
Regarding BDs as pulsars:
"As yet, the processes controlling the radio flashes from TVLM 513 are still unclear. There is no evidence of a binary system, so interaction of the magnetosphere with a stellar wind from a nearby star seems an unlikely cause, nor is there any sign of an orbiting planet that could produce a scenario like that of Jupiter and Io. However, rapid rotation is also thought to be a source of electron acceleration for a component of Jupiter's maser emission and this may also be the main source of TVLM 513's radio flashes."
spaceref
So could a rapidly rotating nearby BD be the cause of these accelerated electrons?
Although, if there were a nearby BD it could just as well be the interaction of its magnetosphere with our sun's stellar wind, no?
I don't know which is why I ask...
But what do you think it might be, Van Rijn?
Dark Matter? A Black Hole?
Or, would you agree with Jerry and or pete that the CMB is not so "cosmic" and perhaps matter (these high energy electrons) is being generated nearby in emtpy space?
(that, if I'm understanding their discussion)