Big Bang, Acceleration and the cosmological constant.
In the 1998 the Supernova Cosmolgy Project and the Reiss et al paper (1) claims hi redshifted SN1a data shows not only expansion but acceleration in the expansion of the Big Bang. Yet an analysis of the data in the paper seems to indicate the opposite: ie no acceleration and no expansion. (Notice that an independent peer reviewed analysis (2) of similar hi redshifted SN1a shows no expansion in hi redshifted SN1a data).
The main point in the Reiss paper, hilited in italics in the paper, is that SN1a appear fainter or dimmer than expected by between 10-15% at higher redshifts. This is an odd claim considering that the Big Bang theory predicts that for the hi redshifted sample in the paper at z>1, time dilation of about 10-15% in lightcurve decays are expected. (In figure 13 of the paper it explains that ‘dimmer’ also equates to a faster decay than expected in a supernovae lightcurve.) In other words the 10-15% increase in lightcurve decays for the hi redshifted sample that the Big Bang theory predicts ...is not actually observed!
Of course it all depends on what exactly Reiss was referring to in figure 13 when it says that fainter or dimmer supernovae are those which are also decaying faster.
Yet not only does the paper and the Big Bang theory predict that SN1a data will show time dilation due to expansion, which it doesn’t, it also pretends that the reason why this predicted time dilation was not observed...was because a previous un predicted and anomalous acceleration of expansion is occurring in the universe from about 7 billion years to present. Due to a change in the cosmological constant.
A Sneaky way to make no time dilation observed in hi and low redshifted SN1a data...look like it was still predicted by the Big Bang theory.
1)Reiss et al 1998. “Observational evidence from supernovae for an accelerating universe and cosmological constant”
2)http://physicsexplained.blogspot.com/2015/10/supernova-light-curves-fit-non.html
