Additional Materials – 2025 Cosmic walls paper

This webpage contains additional material for the paper

Benjamin Hertzsch, Job Feldbrugge, Maé Rodriguez, Rien van de Weygaert (2025) “A New Recipe for Caustic Pancakes: On the Reality of Walls in the Cosmic Web”, arXiv:2510.02419.

We provide the following materials accompanying the text:

• Animations:

  • High-resolution wall centre constraint simulation: fly-through animation (mp4-file) (above) and rotating animation (mp4-file)

  • Formation of a multistream region on a 2D particle mesh: animation (mp4-file) (for source code, contact job.feldbrugge@ed.ac.uk)

  • 3D view of a Zel’dovich pancake: animation (mp4-file) (for source code, contact job.feldbrugge@ed.ac.uk)
    
    

• A₃ wall centre constraint fields:

  • 100 Field realisations for the A₃ wall centre constraint at (σ, b_c) = (2.0, 0.8): folder (zip)

  • 100 Field realisations for the contracting A₃ wall centre constraint at (σ, b_c) = (2.0, 0.9): folder (zip)

  • 100 Field realisations for (σ, b_c) = (1.5, 0.75): folder (zip)

  • 100 Field realisations for (σ, b_c) = (1.0, 0.6): folder (zip)

  • 100 Field realisations for (σ, b_c) = (2.0, 0.9): folder (zip)
    
    

• ϕ^{(+ − −)} saddle point constraint fields:

  • 100 Field realisations for σ = 2.0: folder (zip)
    
    

• δ^{(+ + −)} saddle point constraint fields:

  • 100 Field realisations for (σ, b_c) = (2.0, 0.9): folder (zip)

  • 50 Field realisations for (σ, b_c) = (1.5, 0.8): folder (zip)

  • 50 Field realisations for (σ, b_c) = (1.0, 0.7): folder (zip)
    
    

Please do not hesitate to reach out to the authors if you have questions about the paper, or are interested in learning more about this project.