Tracing the Cosmic Web
Data used in "Tracing the Cosmic Web" comparison project
The data for this project is available for download as a zipped tar file: TracingTheCosmicWebData.tar.gz.
This directory contains two types of files: CUBE and FOF, also see the README.txt.
When using the data base in publications, please cite this DOI: doi:10.17876/data/2017_1 as well as Libeskind et al 2017.
The simulation that the methods were run on had following parameters:
Cosmology |
Planck cosmology |
|
|---|---|---|
| Lbox | 200 Mpc/h | side length of simulation box |
| Nparticles | 512^3 | total number of simulation particles (resolution) |
Terminology/convention for the cosmic web classification:
Web classification |
|
|---|---|
| void | 0 |
| sheed | 1 |
| filament | 2 |
| knot | 3 |
| n/a | -1 |
Each method was asked to return two files:
CUBE_200_512_<method>.txtFOF_200_512_<method>.txt
CUBE file format: The cosmic web classification of each point in space is returned on a regular grid of 2 Mpc spacing. The first three columns give the (x,y,z) coordinate of the cell's center. The last column returns the "web_id", described above.
FOF file format: Each method was asked to add a final column to the FOF catalog with the "web_id".
The meaning of the other columns may be ascertained from the header in the FOF catalog: fof_catalog_200Mpc512.txt (b=0.2 linking length).
We include the gadget z=0 snapshot directory as well (./snapshots).