Galaxy Anatomy: ‘Darwin Spirals’

Abstract: Humans have recognized the natural entity of galaxies for over ninety years. Dr.He initiated the concept of rational structure and applied it to the study of galaxy struc-ture in 2001. The main reason is that galaxy arms trace their way on the galaxy disk plane elegantly so that the ratio of stellar density on the left side of the route to the one on the right is constant along the way. This is comparable to the elegant principle of natural selec-tion. From now on, we call galaxy arms ‘Darwin spirals ’ or ‘Darwin curves ’ instead of calling them ‘iso-ratio curves ’ or ‘proportion curves’. If Dr.He’s study is proved to be truth, then galaxy arms must be the disturbance to rational structure. The disturbance generates dus