[Cosmo-torun] 13:00 Fri 22 Mar: Virialization-induced curvature as a physical explanation for dark energy

Boud Roukema boud w astro.uni.torun.pl
Śro, 20 Mar 2013, 13:47:35 CET


hi cosmo-torun

For this Friday I propose a combined workshop and "Kosmologia"
lecture.  The one-line sound-bite is: "dark energy is the ordinary,
relativistic, negative curvature of voids, which FLRW doesn't allow".

   13:00 Fri 22 Mar: Virialization-induced curvature as a physical
   explanation for dark energy

   Abstract: "Dark energy" occurs during the redshift range
   over which the Universe becomes virialised, i.e. inhomogeneous,
   meaning that the homogeneous model should fail. Adding
   virialisation-induced negative curvature (of voids) to an
   Einstein-de Sitter (Omega_m = 1, Omega_Lambda = 0) model
   brings its d_L(z) relation close to that of the standard,
   Newtonian-void LambdaCDM model. Dark energy is most simply
   interpreted as an artefact of forcing voids to be flat,
   Newtonian voids.

   URL: http://arXiv.org/abs/1303.4444


For official "Kosmologia" hours, the doktoranci should stay a little
longer for discussion.

pozdr
boud




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