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TeVeS and Dark Energy.

  1. Apr 13, 2005 #1


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    MOND is a theory the modifies the theory of gravity in weak fields which predicts, from luminous matter observations only, most of the galactic dynamics which motivated dark matter theory. It was developed by an Israeli scientist by the name of Milgrom in 1983.

    TeVeS is a relativistic generalization of MOND developed by Milgrom's colleague Bekenstein in 2004. It reduces to general relativity in strong gravitational fields and to MOND in weak gravitational fields, while resolving problems earlier versions of MOND had with phenomena such as gravitational lensing, conservation laws, superluminal modes, and so on.

    A paper posted in arxiv this month (http://www.arxiv.org/abs/astro-ph/0504130), by two University of Michigan physicists (Go Blue!), has determined that it is possible to tweak TeVeS to eliminate the need not only for dark matter, but also for dark energy. From the abstract:

  2. jcsd
  3. Apr 13, 2005 #2
    So wait, what is it that you're getting at? The concept of Dark Matter and Energy has been explained before but I don't understand what it is. Even though I've read multiple explanations several times. So is your post getting at evidence that supports Dark Matter?
  4. Apr 13, 2005 #3


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    MOND offers a way out of the most vexing problem associated with dark matter - we can't seem to detect the stuff by any means other than gravitational effects. And making dark matter go away may help make dark energy go away [there are reasons to suspect they may be different manifestations of the same underlying effect]. But like any competing theory of gravity, it still has a lot of hoops to jump through before gaining broad acceptance. As a minority opinion, at present, it does not draw as much attention as deserved. Presumably that will change unless someone finds a fatal flaw. Theories never die of old age, they're assassinated.
    Last edited: Apr 13, 2005
  5. Apr 17, 2005 #4


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    For want of a better place to put this information, I'll note that Bekestein's primary field of research is black holes and that he is a scientific colleague of Hawking. See: http://en.wikipedia.org/wiki/M-theory

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