Galilius: A Simple Simulation Model of Spiral Galaxies

Abstract Galaxy morphology classification plays a significant role in the galaxy’s evolution. The existence of spiral arms and bars classification of the Hubble sequence is a misunderstood problem. The most previous studies disagree on the role of coherent and chaotic orbital structures on galaxy spirals and bar formation. This article suggests a cyclic galaxy simulation model based-on star motions. We implement approximated velocity curves with various parameters. We provide a brief overview of galaxy model flowchart. We show that phase synchronization of stars at initial conditions has a major effect on spiral arms and bar development. In addition, the irregular galaxy shape occurs among chaotic initial conditions or random velocities. We also highlight the model accretion factor α and its linking with stars accretion and galaxy morphology transformation. The proposed model image datasets and simulation tutorials are available on Galilius.com.