Model-independent cosmic acceleration and type Ia supernovae intrinsic luminosity redshift dependence

  title={Model-independent cosmic acceleration and type Ia supernovae intrinsic luminosity redshift dependence},
  author={I. Tutusaus and Brahim Lamine and Alain Blanchard},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
The $\Lambda$CDM model is the current standard model in cosmology thanks to its ability to reproduce the observations. Its first observational evidence appeared from the type Ia supernovae (SNIa) Hubble diagram. However, there has been some debate in the literature concerning the statistical treatment of SNIa. In this paper we relax the standard assumption that SNIa intrinsic luminosity is independent of the redshift, and we examine whether it may have an impact on the accelerated nature of the… 

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