M
michaelmozina
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<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>I do not interpret that article as making claim that dark matter actually did produce the noted electrons. </DIV></p><p>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>Researchers from the Advanced Thin Ionization Calorimeter (ATIC) collaboration, led by scientists at Louisiana State University, Baton Rouge, published the results in the Nov. 20 issue of the journal Nature. The new results show an unexpected surplus of cosmic ray electrons at very high energy -- 300-800 billion electron volts -- that <strong>must come from a previously unidentified source or from the annihilation of very exotic theoretical particles used to explain dark matter</strong>.</DIV></p><p>Why did they conclude this DrRocket? What possible link between these energy states and "dark matter" exists? The answer is *none*. They could "come from" the universe itself too by the way. They don't *have* to be "created" locally as stated. </p><p>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>What I read is that there is no obvious source for the high-energy electrons, but several more-or-less conventinal possibilities were noted -- "According to the research, this source would need to be within about 3,000 light years of the sun.</DIV></p><p>But then you'd expect that we would have already been aware of such an object in what amounts to our own backyard in terms of distance. That's most likely the reason they chose to include yet another option, an option that is totally devoid of empirical scientific support. What about the possibility that they're just "there" because the universe contains/conducts them?</p><p> Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>It could be an exotic object such as a pulsar, mini-quasar, supernova remnant or an intermediate mass black hole." Note the basic fact is that NO ONE KNOWS the origin of these electrons. </DIV></p><p>Well, everyone seems to "know" that Alfven's theories have nothing to do with it. How? Why? Why not mention his work since it "predicted" a surplus of electrons? </p><p>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>Physics is a research science, a work in progress. Open questions are part of the package. They are what make the research exciting. </DIV></p><p>Except that "work in progress" seems to have already "excluded" (and now moves to a different forum) perfectly good theories that already "predict" such things to exist in nature. </p><p>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>They went on to note a possible non-conventional possibility, the annihilation of exotic particles.</DIV></p><p>Show me any dark matter theory that "predicts" electrons in this energy range from any "exotic" particle and then show me an emprical test of concept. If you can do that, *then* it's logical to make this connection. If not (and we know there is no emprical link ever shown), then these are simply 'ad hoc' assertions.</p><p>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'> So, yeah, one speculative theoretical possibility would be the annihilation of supersymmetric particles. But that is a far cry from a claim that the electrons actually have their origin in such phenomena. It is perfectly acceptable to note such a possibility, when you find a phenomena for which you have no clear explanation. That doesn't make it a claim and it certainly doesn't make it a fact. And that is where we came in with the discussion of dark matter itself. It is a place holder (with rapidly increasing circumstantial evidence) itself. </p><p> Posted by DrRocket</DIV></p><p>If and when there is ever an emprical link shown between supersymmetric particles and these high energy electrons, you let me know. As it stands now, these are exactly the kinds of ad hoc assertions that undermine the credibility of this industry. They might as well have claimed all unknown energy objects originate with SUSY annihilation. That's just not a logical assertion without good emprical support. There is *no* emprical support that SUSY particles even exist or stay stable long enough to explain such things. None of these statements are particularly compelling and I know of only one cosmology "theory" that actually anticipates and "predicts" high energy electrons, but I can't even talk about it or mention it here on this forum. How is that even "fair" let alone "open minded" as Wayne asserts? </p> <div class="Discussion_UserSignature"> It seems to be a natural consequence of our points of view to assume that the whole of space is filled with electrons and flying electric ions of all kinds. - Kristian Birkeland </div>