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jacob navia wrote in
: See http://www.eso.org/public/archives/r.../eso1217/eso12 17.pdf and http://www.eso.org/public/news/eso1217/ No, that's not what the paper says. |
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Le 19/04/12 22:35, eric gisse a écrit :
jacob wrote in : See http://www.eso.org/public/archives/r.../eso1217/eso12 17.pdf and http://www.eso.org/public/news/eso1217/ No, that's not what the paper says. Of course not. You *never* say "This nonsense doesn't exist" in a scientific paper. You say "New lower limit established for the existence of FOO" I cite from the paper: quote In conclusion, the observations point to a lack of Galactic DM at the solar position, contrary to the expectations of all the current models of Galactic mass distribution. end quote |
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On 4/19/12 2:22 AM, jacob navia wrote:
See http://www.eso.org/public/archives/r...17/eso1217.pdf and http://www.eso.org/public/news/eso1217/ The look at 13,000 light years distant represents ~5 percent of the milky way disc with galactic diameter 120,000 light year (probably much more with dark matter halo) 26,000^2/120,000^2 = .047 Any spherical assumption would make the observed milky way fraction approach 1 percent 26,000^3/120,000^3 = .010 Dark matter may be clumpy. Observations indicate we are not in a clump. Richard D. Saam |
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