From boud w astro.uni.torun.pl Wed Mar 20 13:47:35 2013 From: boud w astro.uni.torun.pl (Boud Roukema) Date: Wed, 20 Mar 2013 13:47:35 +0100 (CET) Subject: [Cosmo-torun] 13:00 Fri 22 Mar: Virialization-induced curvature as a physical explanation for dark energy Message-ID: 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 From faithlesstomas w gmail.com Fri Mar 22 02:17:00 2013 From: faithlesstomas w gmail.com (Tomasz Kazimierczak) Date: Fri, 22 Mar 2013 02:17:00 +0100 Subject: [Cosmo-torun] CMB data from PLANCK revealed Message-ID: Hi cosmo-torun, First CMB data from PLANCK mission revealed! http://www.esa.int/Our_Activities/Space_Science/Planck/Planck_reveals_an_almost_perfect_Universe Pozdr, Tomek