5 research outputs found
Marginal evidence for cosmic acceleration from Type Ia supernovae
The âstandardâ model of cosmology is founded on the basis that the expansion rate of the universe is accelerating at present â as was inferred originally from the Hubble diagram of Type Ia supernovae. There exists now a much bigger database of supernovae so we can perform rigorous statistical tests to check whether these âstandardisable candlesâ indeed indicate cosmic acceleration. Taking account of the empirical procedure by which corrections are made to their absolute magnitudes to allow for the varying shape of the light curve and extinction by dust, we find, rather surprisingly, that the data are still quite consistent with a constant rate of expansion
SNMLE
<p>These are all files used in the analysis of Nielsen et al., arXiv:1506.01354.</p>
<p>All data used is from Betoule et al. (2014).</p