Type 1a Supernova Explosion and the Origin of Sugar Chiral Asymmetry in Biological Systems

详细

It was shown that circularly polarized ultraviolet from positrons generated during the decay of radioactive cobalt ⁵⁶Co produced by the type 1a Supernova explosion in the space scenario of the prebiological stage of the origin of life with regard to the appearance of the chiral asymmetry seed of sugars and their precursors is the most powerful astrophysical source of chiral influence. Arguments in favor of the fact that the role of sugars (ribose) in the origin of life is more important in comparison with amino acids are presented. The properties of nuclear forces uniquely determine the sign of the biosphere chiral asymmetry, observed on the Earth: left amino acids and right sugars strongly dominate (chiral purity).