On metal abundances versus redshift in creationist cosmologies

Abstract: In creationist cosmologies do we expect to find a systematic trend of decreased metallicity in stars as a function of redshift?  Some may claim such a systematic decrease is a ‘lay down misere’1 in favour of the standard big bang model. Here I show that that is not the case, and when the assumptions are changed so does the outcome. Therefore such a claim does not automatically rule out creationist cosmologies with no such redshift dependence. First published in Journal of Creation 29(1) :3-5, April 2015. (This article is TECHNICAL.)

In astronomy, metallicity applies to all elements other than hydrogen and helium. The term ‘metal’ in astronomy describes all elements heavier than helium.2,3 A systematic trend of weighted mean metallicity as a function of look-back time in the Universe is sometimes shown in support of the standard big bang model.4 Though stated some find that this trend is not always so well supported by the observational data.5

Does this rule out certain creationist cosmologies? Take for example, Lisle’s Anisotropic Synchrony Convention (ASC) model,6 which essentially describes all galaxies with the same youthful age of about 6000 years but includes the notion of a mature creation. According to Lisle no ages of any structures in the universe should be greater than 6000 years, therefore based on evolutionary assumptions, if some object appears older due to so-called maturity, i.e. a fully formed galaxy, then that is in-built maturity that was from the creation.7 Continue reading