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Advanced Thin Ionization Calorimeter - DM Confirmation?

  1. Dec 22, 2008 #1

    Astronuc

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    Cosmic Rays from a Mysterious, Nearby Object ?
    http://science.nasa.gov/headlines/y2008/19nov_cosmicrays.htm[/URL]
    Electron 'bump' may confirm dark matter

    [QUOTE]Nov. 19, 2008: An international team of researchers has discovered a puzzling surplus of high-energy electrons bombarding Earth from space. The source of these cosmic rays is unknown, but it must be close to the solar system and it could be made of dark matter. Their results are being reported in the Nov. 20th issue of the journal Nature.

    "This is a big discovery," says co-author John Wefel of Louisiana State University. "It's the first time we've seen a discrete source of accelerated cosmic rays standing out from the general galactic background."
    . . . .

    During five weeks of ballooning in 2000 and 2003, ATIC counted 70 excess electrons in the energy range 300-800 GeV. ("Excess" means over and above the usual number expected from the galactic background.) Seventy electrons may not sound like a great number, but like seventy Lamborghinis on the freeway, it's a significant surplus.
    . . . .[/QUOTE]

    See - [URL]http://www.nature.com/nature/journal/v456/n7220/full/nature07477.html[/URL]
    J. Chang et al. "An excess of cosmic ray electrons at energies of 300-800 Gev," Nature, Nov. 20, 2008

    [PLAIN]http://atic.phys.lsu.edu/aticweb/[/URL]

    It will be interesting to see more results and followup experiments to locate the source.
     
    Last edited by a moderator: May 3, 2017
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