2016/02/04 by A. Rustamov, A. J. Rustamov, Rustamov, A. +2
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #hep-ph
paper · pdf · doi:10.48550/arxiv.1602.01812
openalex publication_date 2016/02/04 · arxiv created 2016/02/14 · arxiv updated 2016/02/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is well established that many galaxies, like our Milky Way, exhibit spiral patterns. The entire galactic disc rotates about the galactic centre with different speeds; higher closer to the centre, lower at greater distances - that is, galactic discs do not rotate like a solid compact disc. The spiral arms are the part of the galactic disc where many young stars are being born. Since young stars are also brightest, we can see the spiral structure of other galaxies from afar. Typically spiral galaxies are copiously observed at redshifts z ~ 1. The recently observed grand-design galaxy Q2343-BX442 at z=2.18, however, implies uncertain origin of its spiral structure. Indeed such "old" galaxies usually look rather clumpy because of their dynamically hot discs. In this report, based on self-similarity, we argue that spiral structures may also appear in heavy-ion collisions as messengers of phase transitions. Thus, spiral structures in galactic patterns may be traced back to a few microseconds after the Big Bang.