TITLE:
Modelling and Analysis of the Hubble Diagram of 280 Type SNIa Supernovae and Gamma Ray Bursts Redshifts with Analytical and Empirical Redshift/Magnitude Functions
AUTHORS:
Laszlo A. Marosi
KEYWORDS:
Magnitude, Redshift Data Fitting, Supernovae, Gamma Ray Bursts, Hubble Diagram, ΛCDM Cosmological Model
JOURNAL NAME:
International Journal of Astronomy and Astrophysics,
Vol.6 No.3,
August
31,
2016
ABSTRACT: Based on an analysis of 280 Type SNIa supernovae and gamma-ray bursts redshifts in the range of z = 0.0104 - 8.1 the Hubble diagram is shown to follow a strictly exponential slope predicting an exponentially expanding or static universe. At redshifts > 2 - 3 ΛCDM models show a poor agreement with the observed data. Based on the results presented in this paper, the Hubble diagram test does not necessarily support the idea of expansion according to the big-bang concordance model.