AST-1A Chapter Notes - Chapter 1: Cosmic Microwave Background, Galaxy Formation And Evolution, Vise
Document Summary
Gained wide scientific evidence for 2 key reasons: era of nuclei should still be present today cosmic microwave background. Predicts that the radiation that began to stream across the universe at the end of an. Predicts that some of the original hydrogen in the universe should have fused into. Big bang had really occurred, this radiation should be permeating the entire universe and helium during the era of nucleosynthesis should be detectable with microwave antenna. Cosmic microwave background consists of microwave photons that have traveled through space since the end of the era of nuclei. Predicts that the cosmic microwave background should have an essentially perfect thermal redaition spectrum. Cosmic background explorer was launched to test these ideas and found a stunning success. Also mapped the temperature of the cosmic microwave bachground in all directions. Our theory of galaxy formation was not quite perfectly uniform.
