Blog
About

49
views
0
recommends
+1 Recommend
0 collections
    8
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      Planck2015 results : XIII. Cosmological parameters

      , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

      Astronomy & Astrophysics

      EDP Sciences

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Related collections

          Most cited references 349

          • Record: found
          • Abstract: not found
          • Article: not found

          Planck2015 results

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            A new type of isotropic cosmological models without singularity

              Bookmark
              • Record: found
              • Abstract: found
              • Article: found
              Is Open Access

              Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

              We present observations of 10 type Ia supernovae (SNe Ia) between 0.16 0) and a current acceleration of the expansion (i.e., q_0 0, the spectroscopically confirmed SNe Ia are consistent with q_0 0 at the 3.0 sigma and 4.0 sigma confidence levels, for two fitting methods respectively. Fixing a ``minimal'' mass density, Omega_M=0.2, results in the weakest detection, Omega_Lambda>0 at the 3.0 sigma confidence level. For a flat-Universe prior (Omega_M+Omega_Lambda=1), the spectroscopically confirmed SNe Ia require Omega_Lambda >0 at 7 sigma and 9 sigma level for the two fitting methods. A Universe closed by ordinary matter (i.e., Omega_M=1) is ruled out at the 7 sigma to 8 sigma level. We estimate the size of systematic errors, including evolution, extinction, sample selection bias, local flows, gravitational lensing, and sample contamination. Presently, none of these effects reconciles the data with Omega_Lambda=0 and q_0 > 0.
                Bookmark

                Author and article information

                Affiliations
                [1 ]Planck Collaboration
                Journal
                Astronomy & Astrophysics
                A&A
                EDP Sciences
                0004-6361
                1432-0746
                October 2016
                September 20 2016
                : 594
                :
                : A13
                10.1051/0004-6361/201525830
                © 2016
                Product

                Comments

                Comment on this article