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These are just rough notes - feel free to correct them, add links, etc. from the Invisible Universe 28 June - 3 July 2009 meeting. These are not official proceedings. The speakers might even disagree that they said anything even vaguely related to what are in these online notes! Don't say you weren't warned.

Jim Peebles

  • planck spectrum from CMB is spectacularly planck-like
    • this is independent of GR
  • likes prospect of growth rate estimates (cf Lefevre et al)
  • Hammer et al. galaxy fundamental plane type stuff
  • MOND - high predictivity
    • but has not (yet) given CMB type tests
  • inhomogeneous stuff (Buchert et al)
    • gravitational clustering energy should give effective pressure to homog model, i.e. about p sim rho v^2 sim 10^-5 rhomean and u sim 10^-5 rhomean
    • agrees with 2nd order perturbation theory
    • ArXiv:0910.5142 - everything points to 10^-6, not 10^0, so inhomogeneous arguments cannot explain Omega_Lambda
  • we still need improved and new cosmological tests
  • we need more accuracy, not just more precision

-- BoudRoukema - 03 Jul 2009
Topic revision: r2 - 30 Oct 2009, BoudRoukema
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