Home Physik Download Artikel Satire Fotos Inhalt

Peter Gerwinski – Physik

Dark Matter

The combination of “normal” gravity (General Relativity) and density-dependent Weyl gravity is suited to explain the phenomenon of Dark Matter, including galaxy clusters.

The materials I am publishing on this page are subject to the Creative Commons Attribution Share-Alike 4.0 license. You are free to remix and to share them.

Third-party works included are subject to free licenses as well – see the individual picture credits.

Publications for a General Audience

• Talk (in German, subtitles available)
  Was ist dunkle Materie?
  16 May 2024, 15:30 UTC

  

  Recording of the talk (59:51 min)
  

  1920×1080 (901 MiB),		960×540 (350 MiB)
  English subtitles,		English subtitles

  Slides

• Online Comic
  phys – My Hobby: Physics
  Table of contents

Visualisations

• 

  Formation of the Bullet Cluster: GIF (1.5 MiB)

Scientific Publications

• P. Gerwinski:
  Weyl gravity and galaxy clusters
  https://www.peter.gerwinski.de/phys/wg-clusters.pdf, 7 pages, 8 figures (2025)

  We apply a density-dependent variant of Weyl gravity, combined with Einstein-Hilbert gravity, to galaxy clusters. After fitting two global parameters, the gravity profiles calculated from the known baryonic matter in Abell 1689, Abell 1835, and Abell 2029 are compatible with the surface mass density profiles obtained from gravitational lensing and largely compatible with the acceleration profiles obtained from the hydrostatic equilibrium of the intergalactic gas, thus explaining the differences between the results of both methods. The shape of the two-dimensional κ map in 1E 0657−558 (Bullet Cluster) is reproduced qualitatively.

Home Physik Download Artikel Satire Fotos Inhalt